diff --git a/extras/Demo/Builds/MacOSX/JuceDemo.xcodeproj/project.pbxproj b/extras/Demo/Builds/MacOSX/JuceDemo.xcodeproj/project.pbxproj
index 3f4edc7c40..0590e74ae6 100644
--- a/extras/Demo/Builds/MacOSX/JuceDemo.xcodeproj/project.pbxproj
+++ b/extras/Demo/Builds/MacOSX/JuceDemo.xcodeproj/project.pbxproj
@@ -87,6 +87,7 @@
 		01C6528C4A0646873D4C3429 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = AudioLatencyDemo.cpp; path = ../../Source/Demos/AudioLatencyDemo.cpp; sourceTree = "SOURCE_ROOT"; };
 		01F2CB80C1B14450528F0FA8 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_Identifier.cpp"; path = "../../../../modules/juce_core/text/juce_Identifier.cpp"; sourceTree = "SOURCE_ROOT"; };
 		01F49D3FD943424005FB512F = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_android_FileChooser.cpp"; path = "../../../../modules/juce_gui_basics/native/juce_android_FileChooser.cpp"; sourceTree = "SOURCE_ROOT"; };
+		02628740749F0BD4C9193070 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_MountedVolumeListChangeDetector.h"; path = "../../../../modules/juce_core/files/juce_MountedVolumeListChangeDetector.h"; sourceTree = "SOURCE_ROOT"; };
 		02659911BD886D2E8431B912 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_LocalisedStrings.h"; path = "../../../../modules/juce_core/text/juce_LocalisedStrings.h"; sourceTree = "SOURCE_ROOT"; };
 		02ABF8C447E1A47845F6027D = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_DrawableText.cpp"; path = "../../../../modules/juce_gui_basics/drawables/juce_DrawableText.cpp"; sourceTree = "SOURCE_ROOT"; };
 		02F0BF69062E8D9583F13C83 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_Drawable.cpp"; path = "../../../../modules/juce_gui_basics/drawables/juce_Drawable.cpp"; sourceTree = "SOURCE_ROOT"; };
@@ -934,7 +935,6 @@
 		E6E0ADA4E3632540A8ADC7D8 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_ConnectedChildProcess.cpp"; path = "../../../../modules/juce_events/interprocess/juce_ConnectedChildProcess.cpp"; sourceTree = "SOURCE_ROOT"; };
 		E6E0FE3CBDBE2554B527CF60 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_AudioSourcePlayer.cpp"; path = "../../../../modules/juce_audio_devices/sources/juce_AudioSourcePlayer.cpp"; sourceTree = "SOURCE_ROOT"; };
 		E70A283A87989F5A1CEDE6A4 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_ResamplingAudioSource.cpp"; path = "../../../../modules/juce_audio_basics/sources/juce_ResamplingAudioSource.cpp"; sourceTree = "SOURCE_ROOT"; };
-		E7113B21A18CD89165BAFD4B = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_android_Messaging.cpp"; path = "../../../../modules/juce_events/native/juce_android_Messaging.cpp"; sourceTree = "SOURCE_ROOT"; };
 		E7EA99CD84E1EC598F4984DD = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_Array.h"; path = "../../../../modules/juce_core/containers/juce_Array.h"; sourceTree = "SOURCE_ROOT"; };
 		E7EE6BDC0E3A0739529AED91 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_AudioSubsectionReader.cpp"; path = "../../../../modules/juce_audio_formats/format/juce_AudioSubsectionReader.cpp"; sourceTree = "SOURCE_ROOT"; };
 		E80CA3836329ED0EEC74BAE6 = {isa = PBXFileReference; lastKnownFileType = file.nib; name = RecentFilesMenuTemplate.nib; path = RecentFilesMenuTemplate.nib; sourceTree = "SOURCE_ROOT"; };
@@ -944,6 +944,7 @@
 		DEE5EFE8148FD2DC743A7DD7 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = LookAndFeelDemo.cpp; path = ../../Source/Demos/LookAndFeelDemo.cpp; sourceTree = "SOURCE_ROOT"; };
 		E5E02A3C4E942105FEDCA885 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_ChannelRemappingAudioSource.h"; path = "../../../../modules/juce_audio_basics/sources/juce_ChannelRemappingAudioSource.h"; sourceTree = "SOURCE_ROOT"; };
 		E682A3A52BD15D5CA4933C12 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_RelativeParallelogram.h"; path = "../../../../modules/juce_gui_basics/positioning/juce_RelativeParallelogram.h"; sourceTree = "SOURCE_ROOT"; };
+		E7113B21A18CD89165BAFD4B = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_android_Messaging.cpp"; path = "../../../../modules/juce_events/native/juce_android_Messaging.cpp"; sourceTree = "SOURCE_ROOT"; };
 		E7A5AF3EBCFEEF8787F2D14F = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_MidiKeyboardComponent.cpp"; path = "../../../../modules/juce_audio_utils/gui/juce_MidiKeyboardComponent.cpp"; sourceTree = "SOURCE_ROOT"; };
 		E7B21011F93915ADD2CC5DD9 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_GlyphArrangement.cpp"; path = "../../../../modules/juce_graphics/fonts/juce_GlyphArrangement.cpp"; sourceTree = "SOURCE_ROOT"; };
 		E8128A35828C860977FEC54C = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_AudioFormatWriter.cpp"; path = "../../../../modules/juce_audio_formats/format/juce_AudioFormatWriter.cpp"; sourceTree = "SOURCE_ROOT"; };
@@ -1421,6 +1422,7 @@
 					A6EE2D5A258294BAC600F75B,
 					0F518E75055A9D954B52DAC4,
 					44879946DE89AF141BE428B6,
+					02628740749F0BD4C9193070,
 					5D40332D94747C3190D4CC16,
 					2174CAEE6D8EB215ACD4A256,
 					4198EE3311A171C884A5FA9F,
diff --git a/extras/Demo/Builds/VisualStudio2010/JuceDemo.vcxproj b/extras/Demo/Builds/VisualStudio2010/JuceDemo.vcxproj
index 0e90f7d9bb..798b64aeb6 100644
--- a/extras/Demo/Builds/VisualStudio2010/JuceDemo.vcxproj
+++ b/extras/Demo/Builds/VisualStudio2010/JuceDemo.vcxproj
@@ -1447,6 +1447,7 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileOutputStream.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_WildcardFileFilter.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\network\juce_IPAddress.h"/>
diff --git a/extras/Demo/Builds/VisualStudio2010/JuceDemo.vcxproj.filters b/extras/Demo/Builds/VisualStudio2010/JuceDemo.vcxproj.filters
index 62f061137b..73391799c9 100644
--- a/extras/Demo/Builds/VisualStudio2010/JuceDemo.vcxproj.filters
+++ b/extras/Demo/Builds/VisualStudio2010/JuceDemo.vcxproj.filters
@@ -2163,6 +2163,9 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h">
+      <Filter>Juce Modules\juce_core\files</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
diff --git a/extras/Demo/Builds/VisualStudio2012/JuceDemo.vcxproj b/extras/Demo/Builds/VisualStudio2012/JuceDemo.vcxproj
index e8b2649130..6090f96e50 100644
--- a/extras/Demo/Builds/VisualStudio2012/JuceDemo.vcxproj
+++ b/extras/Demo/Builds/VisualStudio2012/JuceDemo.vcxproj
@@ -1453,6 +1453,7 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileOutputStream.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_WildcardFileFilter.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\network\juce_IPAddress.h"/>
diff --git a/extras/Demo/Builds/VisualStudio2012/JuceDemo.vcxproj.filters b/extras/Demo/Builds/VisualStudio2012/JuceDemo.vcxproj.filters
index 62f061137b..73391799c9 100644
--- a/extras/Demo/Builds/VisualStudio2012/JuceDemo.vcxproj.filters
+++ b/extras/Demo/Builds/VisualStudio2012/JuceDemo.vcxproj.filters
@@ -2163,6 +2163,9 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h">
+      <Filter>Juce Modules\juce_core\files</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
diff --git a/extras/Demo/Builds/VisualStudio2013/JuceDemo.vcxproj b/extras/Demo/Builds/VisualStudio2013/JuceDemo.vcxproj
index dd33ce8efa..2d7cef856e 100644
--- a/extras/Demo/Builds/VisualStudio2013/JuceDemo.vcxproj
+++ b/extras/Demo/Builds/VisualStudio2013/JuceDemo.vcxproj
@@ -1453,6 +1453,7 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileOutputStream.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_WildcardFileFilter.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\network\juce_IPAddress.h"/>
diff --git a/extras/Demo/Builds/VisualStudio2013/JuceDemo.vcxproj.filters b/extras/Demo/Builds/VisualStudio2013/JuceDemo.vcxproj.filters
index 5db11e4722..bfb18eb321 100644
--- a/extras/Demo/Builds/VisualStudio2013/JuceDemo.vcxproj.filters
+++ b/extras/Demo/Builds/VisualStudio2013/JuceDemo.vcxproj.filters
@@ -2163,6 +2163,9 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h">
+      <Filter>Juce Modules\juce_core\files</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
diff --git a/extras/Demo/Builds/iOS/JuceDemo.xcodeproj/project.pbxproj b/extras/Demo/Builds/iOS/JuceDemo.xcodeproj/project.pbxproj
index 0c2d00c700..9ce21379c2 100644
--- a/extras/Demo/Builds/iOS/JuceDemo.xcodeproj/project.pbxproj
+++ b/extras/Demo/Builds/iOS/JuceDemo.xcodeproj/project.pbxproj
@@ -83,6 +83,7 @@
 		01C6528C4A0646873D4C3429 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = AudioLatencyDemo.cpp; path = ../../Source/Demos/AudioLatencyDemo.cpp; sourceTree = "SOURCE_ROOT"; };
 		01F2CB80C1B14450528F0FA8 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_Identifier.cpp"; path = "../../../../modules/juce_core/text/juce_Identifier.cpp"; sourceTree = "SOURCE_ROOT"; };
 		01F49D3FD943424005FB512F = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_android_FileChooser.cpp"; path = "../../../../modules/juce_gui_basics/native/juce_android_FileChooser.cpp"; sourceTree = "SOURCE_ROOT"; };
+		02628740749F0BD4C9193070 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_MountedVolumeListChangeDetector.h"; path = "../../../../modules/juce_core/files/juce_MountedVolumeListChangeDetector.h"; sourceTree = "SOURCE_ROOT"; };
 		02659911BD886D2E8431B912 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_LocalisedStrings.h"; path = "../../../../modules/juce_core/text/juce_LocalisedStrings.h"; sourceTree = "SOURCE_ROOT"; };
 		02ABF8C447E1A47845F6027D = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_DrawableText.cpp"; path = "../../../../modules/juce_gui_basics/drawables/juce_DrawableText.cpp"; sourceTree = "SOURCE_ROOT"; };
 		02F0BF69062E8D9583F13C83 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_Drawable.cpp"; path = "../../../../modules/juce_gui_basics/drawables/juce_Drawable.cpp"; sourceTree = "SOURCE_ROOT"; };
@@ -1413,6 +1414,7 @@
 					A6EE2D5A258294BAC600F75B,
 					0F518E75055A9D954B52DAC4,
 					44879946DE89AF141BE428B6,
+					02628740749F0BD4C9193070,
 					5D40332D94747C3190D4CC16,
 					2174CAEE6D8EB215ACD4A256,
 					4198EE3311A171C884A5FA9F,
diff --git a/extras/Introjucer/Builds/CodeBlocks/The Introjucer.cbp b/extras/Introjucer/Builds/CodeBlocks/The Introjucer.cbp
index f61cd6c21b..2522cc0d0c 100644
--- a/extras/Introjucer/Builds/CodeBlocks/The Introjucer.cbp	
+++ b/extras/Introjucer/Builds/CodeBlocks/The Introjucer.cbp	
@@ -1085,6 +1085,10 @@
       <Option compile="0"/>
       <Option link="0"/>
     </Unit>
+    <Unit filename="../../../../modules/juce_core/files/juce_MountedVolumeListChangeDetector.h">
+      <Option compile="0"/>
+      <Option link="0"/>
+    </Unit>
     <Unit filename="../../../../modules/juce_core/files/juce_TemporaryFile.cpp">
       <Option compile="0"/>
       <Option link="0"/>
diff --git a/extras/Introjucer/Builds/MacOSX/The Introjucer.xcodeproj/project.pbxproj b/extras/Introjucer/Builds/MacOSX/The Introjucer.xcodeproj/project.pbxproj
index a12bf90fd8..4441e66584 100644
--- a/extras/Introjucer/Builds/MacOSX/The Introjucer.xcodeproj/project.pbxproj	
+++ b/extras/Introjucer/Builds/MacOSX/The Introjucer.xcodeproj/project.pbxproj	
@@ -102,6 +102,7 @@
 		0BEDB3FD70AB61D3E7891D74 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_ComponentListener.cpp"; path = "../../../../modules/juce_gui_basics/components/juce_ComponentListener.cpp"; sourceTree = "SOURCE_ROOT"; };
 		0C747328CDADAE15E86E5E93 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; name = "juce_mac_FileChooser.mm"; path = "../../../../modules/juce_gui_basics/native/juce_mac_FileChooser.mm"; sourceTree = "SOURCE_ROOT"; };
 		0C956209A61542371A7A5257 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_Colour.h"; path = "../../../../modules/juce_graphics/colour/juce_Colour.h"; sourceTree = "SOURCE_ROOT"; };
+		0CAA9DB945FC784F3309F3EC = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_MountedVolumeListChangeDetector.h"; path = "../../../../modules/juce_core/files/juce_MountedVolumeListChangeDetector.h"; sourceTree = "SOURCE_ROOT"; };
 		0CC9026D5056CA9C1FE64A64 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_ArrowButton.h"; path = "../../../../modules/juce_gui_basics/buttons/juce_ArrowButton.h"; sourceTree = "SOURCE_ROOT"; };
 		0CEF14D37EC664CA49A2B04D = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_ComponentPeer.cpp"; path = "../../../../modules/juce_gui_basics/windows/juce_ComponentPeer.cpp"; sourceTree = "SOURCE_ROOT"; };
 		0D100A1B27A72355323CB637 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_win32_Windowing.cpp"; path = "../../../../modules/juce_gui_basics/native/juce_win32_Windowing.cpp"; sourceTree = "SOURCE_ROOT"; };
@@ -1207,6 +1208,7 @@
 					2C7A9B2EDC724657EBF9FA83,
 					C4FA33B08560AD0D000EB498,
 					83056E8F17A0365667EBEA82,
+					0CAA9DB945FC784F3309F3EC,
 					AAB313919EE298E25D2EAD19,
 					3A2888667372BA896AACFBDB,
 					66069653FDEA4CB7C2B4B02F,
diff --git a/extras/Introjucer/Builds/VisualStudio2005/The Introjucer.vcproj b/extras/Introjucer/Builds/VisualStudio2005/The Introjucer.vcproj
index 63632db217..5bd50dd6cc 100644
--- a/extras/Introjucer/Builds/VisualStudio2005/The Introjucer.vcproj	
+++ b/extras/Introjucer/Builds/VisualStudio2005/The Introjucer.vcproj	
@@ -932,6 +932,7 @@
           </File>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+          <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.cpp">
             <FileConfiguration Name="Debug|Win32"
                                ExcludedFromBuild="true">
diff --git a/extras/Introjucer/Builds/VisualStudio2008/The Introjucer.vcproj b/extras/Introjucer/Builds/VisualStudio2008/The Introjucer.vcproj
index d3ceda0742..e56ec04506 100644
--- a/extras/Introjucer/Builds/VisualStudio2008/The Introjucer.vcproj	
+++ b/extras/Introjucer/Builds/VisualStudio2008/The Introjucer.vcproj	
@@ -932,6 +932,7 @@
           </File>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+          <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.cpp">
             <FileConfiguration Name="Debug|Win32"
                                ExcludedFromBuild="true">
diff --git a/extras/Introjucer/Builds/VisualStudio2010/The Introjucer.vcxproj b/extras/Introjucer/Builds/VisualStudio2010/The Introjucer.vcxproj
index 8c5903ebb3..3acdaca8ec 100644
--- a/extras/Introjucer/Builds/VisualStudio2010/The Introjucer.vcxproj	
+++ b/extras/Introjucer/Builds/VisualStudio2010/The Introjucer.vcxproj	
@@ -1219,6 +1219,7 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileOutputStream.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_WildcardFileFilter.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\network\juce_IPAddress.h"/>
diff --git a/extras/Introjucer/Builds/VisualStudio2010/The Introjucer.vcxproj.filters b/extras/Introjucer/Builds/VisualStudio2010/The Introjucer.vcxproj.filters
index 5e92e0b064..1f77cf1c5f 100644
--- a/extras/Introjucer/Builds/VisualStudio2010/The Introjucer.vcxproj.filters	
+++ b/extras/Introjucer/Builds/VisualStudio2010/The Introjucer.vcxproj.filters	
@@ -1878,6 +1878,9 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h">
+      <Filter>Juce Modules\juce_core\files</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
diff --git a/extras/Introjucer/Builds/VisualStudio2012/The Introjucer.vcxproj b/extras/Introjucer/Builds/VisualStudio2012/The Introjucer.vcxproj
index dff5847509..80ec64be9f 100644
--- a/extras/Introjucer/Builds/VisualStudio2012/The Introjucer.vcxproj	
+++ b/extras/Introjucer/Builds/VisualStudio2012/The Introjucer.vcxproj	
@@ -1225,6 +1225,7 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileOutputStream.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_WildcardFileFilter.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\network\juce_IPAddress.h"/>
diff --git a/extras/Introjucer/Builds/VisualStudio2012/The Introjucer.vcxproj.filters b/extras/Introjucer/Builds/VisualStudio2012/The Introjucer.vcxproj.filters
index 5e92e0b064..1f77cf1c5f 100644
--- a/extras/Introjucer/Builds/VisualStudio2012/The Introjucer.vcxproj.filters	
+++ b/extras/Introjucer/Builds/VisualStudio2012/The Introjucer.vcxproj.filters	
@@ -1878,6 +1878,9 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h">
+      <Filter>Juce Modules\juce_core\files</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
diff --git a/extras/Introjucer/Builds/VisualStudio2013/The Introjucer.vcxproj b/extras/Introjucer/Builds/VisualStudio2013/The Introjucer.vcxproj
index e88da3ea1a..7c50456dde 100644
--- a/extras/Introjucer/Builds/VisualStudio2013/The Introjucer.vcxproj	
+++ b/extras/Introjucer/Builds/VisualStudio2013/The Introjucer.vcxproj	
@@ -1225,6 +1225,7 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileOutputStream.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_WildcardFileFilter.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\network\juce_IPAddress.h"/>
diff --git a/extras/Introjucer/Builds/VisualStudio2013/The Introjucer.vcxproj.filters b/extras/Introjucer/Builds/VisualStudio2013/The Introjucer.vcxproj.filters
index df40bcd9d9..201f978a79 100644
--- a/extras/Introjucer/Builds/VisualStudio2013/The Introjucer.vcxproj.filters	
+++ b/extras/Introjucer/Builds/VisualStudio2013/The Introjucer.vcxproj.filters	
@@ -1878,6 +1878,9 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h">
+      <Filter>Juce Modules\juce_core\files</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
diff --git a/extras/audio plugin demo/Builds/MacOSX/JuceDemoPlugin.xcodeproj/project.pbxproj b/extras/audio plugin demo/Builds/MacOSX/JuceDemoPlugin.xcodeproj/project.pbxproj
index bb688b1960..d9a61cc236 100644
--- a/extras/audio plugin demo/Builds/MacOSX/JuceDemoPlugin.xcodeproj/project.pbxproj	
+++ b/extras/audio plugin demo/Builds/MacOSX/JuceDemoPlugin.xcodeproj/project.pbxproj	
@@ -511,6 +511,7 @@
 		7CBA5F2277845FDC3AABFEAD = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; name = "juce_ios_UIViewComponentPeer.mm"; path = "../../../../modules/juce_gui_basics/native/juce_ios_UIViewComponentPeer.mm"; sourceTree = "SOURCE_ROOT"; };
 		7D08D5465E74DF02EA4E7410 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; name = "juce_VST3_Wrapper.mm"; path = "../../../../modules/juce_audio_plugin_client/VST3/juce_VST3_Wrapper.mm"; sourceTree = "SOURCE_ROOT"; };
 		7D2452DC43894CAD497C0FA4 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_ComponentBuilder.cpp"; path = "../../../../modules/juce_gui_basics/layout/juce_ComponentBuilder.cpp"; sourceTree = "SOURCE_ROOT"; };
+		7D3FD5B9C27AF7A66682A32D = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_MountedVolumeListChangeDetector.h"; path = "../../../../modules/juce_core/files/juce_MountedVolumeListChangeDetector.h"; sourceTree = "SOURCE_ROOT"; };
 		7D5CFA5B4C64986B875C71DC = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_XmlDocument.cpp"; path = "../../../../modules/juce_core/xml/juce_XmlDocument.cpp"; sourceTree = "SOURCE_ROOT"; };
 		7DC4334C7DA62856B8E70B25 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_AudioFormatWriter.cpp"; path = "../../../../modules/juce_audio_formats/format/juce_AudioFormatWriter.cpp"; sourceTree = "SOURCE_ROOT"; };
 		7E1239926CC4A760AE07FF37 = {isa = PBXFileReference; lastKnownFileType = file; name = "juce_module_info"; path = "../../../../modules/juce_data_structures/juce_module_info"; sourceTree = "SOURCE_ROOT"; };
@@ -1338,6 +1339,7 @@
 					A7055681554844E4708E27A0,
 					FFB44C10D77D4B9DCA431C69,
 					5F828B7BE8D9B860182A6606,
+					7D3FD5B9C27AF7A66682A32D,
 					4FB58D47EA973CA9529AF6A9,
 					BB84A0B296CFBF17FAF145B0,
 					C854266C28A55C3F34489746,
diff --git a/extras/audio plugin demo/Builds/VisualStudio2005/JuceDemoPlugin.vcproj b/extras/audio plugin demo/Builds/VisualStudio2005/JuceDemoPlugin.vcproj
index d03df2e8f8..75a32c4ef0 100644
--- a/extras/audio plugin demo/Builds/VisualStudio2005/JuceDemoPlugin.vcproj	
+++ b/extras/audio plugin demo/Builds/VisualStudio2005/JuceDemoPlugin.vcproj	
@@ -1540,6 +1540,7 @@
           </File>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+          <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.cpp">
             <FileConfiguration Name="Debug|Win32"
                                ExcludedFromBuild="true">
diff --git a/extras/audio plugin demo/Builds/VisualStudio2008/JuceDemoPlugin.vcproj b/extras/audio plugin demo/Builds/VisualStudio2008/JuceDemoPlugin.vcproj
index f62a8173e1..568eb7aa80 100644
--- a/extras/audio plugin demo/Builds/VisualStudio2008/JuceDemoPlugin.vcproj	
+++ b/extras/audio plugin demo/Builds/VisualStudio2008/JuceDemoPlugin.vcproj	
@@ -1540,6 +1540,7 @@
           </File>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+          <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.cpp">
             <FileConfiguration Name="Debug|Win32"
                                ExcludedFromBuild="true">
diff --git a/extras/audio plugin demo/Builds/VisualStudio2010/JuceDemoPlugin.vcxproj b/extras/audio plugin demo/Builds/VisualStudio2010/JuceDemoPlugin.vcxproj
index 0572f7c23c..c81bdb4165 100644
--- a/extras/audio plugin demo/Builds/VisualStudio2010/JuceDemoPlugin.vcxproj	
+++ b/extras/audio plugin demo/Builds/VisualStudio2010/JuceDemoPlugin.vcxproj	
@@ -1377,6 +1377,7 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileOutputStream.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_WildcardFileFilter.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\network\juce_IPAddress.h"/>
diff --git a/extras/audio plugin demo/Builds/VisualStudio2010/JuceDemoPlugin.vcxproj.filters b/extras/audio plugin demo/Builds/VisualStudio2010/JuceDemoPlugin.vcxproj.filters
index e633f011fd..25f67746be 100644
--- a/extras/audio plugin demo/Builds/VisualStudio2010/JuceDemoPlugin.vcxproj.filters	
+++ b/extras/audio plugin demo/Builds/VisualStudio2010/JuceDemoPlugin.vcxproj.filters	
@@ -1992,6 +1992,9 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h">
+      <Filter>Juce Modules\juce_core\files</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
diff --git a/extras/audio plugin host/Builds/MacOSX/Plugin Host.xcodeproj/project.pbxproj b/extras/audio plugin host/Builds/MacOSX/Plugin Host.xcodeproj/project.pbxproj
index 3e57fee41a..25878fa17d 100644
--- a/extras/audio plugin host/Builds/MacOSX/Plugin Host.xcodeproj/project.pbxproj	
+++ b/extras/audio plugin host/Builds/MacOSX/Plugin Host.xcodeproj/project.pbxproj	
@@ -695,6 +695,7 @@
 		BC12698889AAD84B83FA7A21 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_RectangleList.h"; path = "../../../../modules/juce_graphics/geometry/juce_RectangleList.h"; sourceTree = "SOURCE_ROOT"; };
 		BC310F9E7F78FD6872F5610E = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_MenuBarComponent.cpp"; path = "../../../../modules/juce_gui_basics/menus/juce_MenuBarComponent.cpp"; sourceTree = "SOURCE_ROOT"; };
 		BD5FE72C6C05445934BD5FAC = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_ImageFileFormat.cpp"; path = "../../../../modules/juce_graphics/images/juce_ImageFileFormat.cpp"; sourceTree = "SOURCE_ROOT"; };
+		BDA398F8994B73F18840B3D7 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_MountedVolumeListChangeDetector.h"; path = "../../../../modules/juce_core/files/juce_MountedVolumeListChangeDetector.h"; sourceTree = "SOURCE_ROOT"; };
 		BDB24F3892E65124A8A5D6FF = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_ChannelRemappingAudioSource.cpp"; path = "../../../../modules/juce_audio_basics/sources/juce_ChannelRemappingAudioSource.cpp"; sourceTree = "SOURCE_ROOT"; };
 		BDC9ADEBD70EED757647B998 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_SubregionStream.h"; path = "../../../../modules/juce_core/streams/juce_SubregionStream.h"; sourceTree = "SOURCE_ROOT"; };
 		BDD99C777FD1F57007F3BFAF = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_ComponentBuilder.h"; path = "../../../../modules/juce_gui_basics/layout/juce_ComponentBuilder.h"; sourceTree = "SOURCE_ROOT"; };
@@ -782,7 +783,6 @@
 		D7433453EBB3700D2805FF42 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_XmlDocument.h"; path = "../../../../modules/juce_core/xml/juce_XmlDocument.h"; sourceTree = "SOURCE_ROOT"; };
 		D795067D4EFB5A34BC383250 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_ThreadPool.h"; path = "../../../../modules/juce_core/threads/juce_ThreadPool.h"; sourceTree = "SOURCE_ROOT"; };
 		D79E29A54AE62E03A533F436 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_StretchableLayoutResizerBar.cpp"; path = "../../../../modules/juce_gui_basics/layout/juce_StretchableLayoutResizerBar.cpp"; sourceTree = "SOURCE_ROOT"; };
-		D7C1255A555A016BA0D98228 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_cryptography.h"; path = "../../../../modules/juce_cryptography/juce_cryptography.h"; sourceTree = "SOURCE_ROOT"; };
 		D7D1FFD98DABD765479240E6 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_EdgeTable.cpp"; path = "../../../../modules/juce_graphics/geometry/juce_EdgeTable.cpp"; sourceTree = "SOURCE_ROOT"; };
 		D8101C0D25DF708FB2E446E5 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_IPAddress.cpp"; path = "../../../../modules/juce_core/network/juce_IPAddress.cpp"; sourceTree = "SOURCE_ROOT"; };
 		D8A3F086596562E081EB0F39 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_AudioFormatManager.h"; path = "../../../../modules/juce_audio_formats/format/juce_AudioFormatManager.h"; sourceTree = "SOURCE_ROOT"; };
@@ -791,6 +791,7 @@
 		D8E9881F48E0A32121A9E84B = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_LookAndFeel_V2.cpp"; path = "../../../../modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.cpp"; sourceTree = "SOURCE_ROOT"; };
 		D9207F324519739FC25FFBDE = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_core.h"; path = "../../../../modules/juce_core/juce_core.h"; sourceTree = "SOURCE_ROOT"; };
 		D92D579F2458F2426E5F828A = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_ScopedWriteLock.h"; path = "../../../../modules/juce_core/threads/juce_ScopedWriteLock.h"; sourceTree = "SOURCE_ROOT"; };
+		D950776EDF9260DB0278C132 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_SliderPropertyComponent.cpp"; path = "../../../../modules/juce_gui_basics/properties/juce_SliderPropertyComponent.cpp"; sourceTree = "SOURCE_ROOT"; };
 		D9857957A36A3081186D53FC = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_android_CameraDevice.cpp"; path = "../../../../modules/juce_video/native/juce_android_CameraDevice.cpp"; sourceTree = "SOURCE_ROOT"; };
 		DBD90FC88456B62308AD9AD0 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; name = "juce_events.mm"; path = "../../../../modules/juce_events/juce_events.mm"; sourceTree = "SOURCE_ROOT"; };
 		DC30BDE9C4EE1FD059D06902 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_AudioDataConverters.cpp"; path = "../../../../modules/juce_audio_basics/buffers/juce_AudioDataConverters.cpp"; sourceTree = "SOURCE_ROOT"; };
@@ -805,7 +806,7 @@
 		CDFF2DDB7331FB561D1673EF = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_VST3Common.h"; path = "../../../../modules/juce_audio_processors/format_types/juce_VST3Common.h"; sourceTree = "SOURCE_ROOT"; };
 		CF67033CFC21C0060B538042 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_ReferenceCountedObject.h"; path = "../../../../modules/juce_core/memory/juce_ReferenceCountedObject.h"; sourceTree = "SOURCE_ROOT"; };
 		D52F4E0C637B4685217CBEB4 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_Decibels.h"; path = "../../../../modules/juce_audio_basics/effects/juce_Decibels.h"; sourceTree = "SOURCE_ROOT"; };
-		D950776EDF9260DB0278C132 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_SliderPropertyComponent.cpp"; path = "../../../../modules/juce_gui_basics/properties/juce_SliderPropertyComponent.cpp"; sourceTree = "SOURCE_ROOT"; };
+		D7C1255A555A016BA0D98228 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_cryptography.h"; path = "../../../../modules/juce_cryptography/juce_cryptography.h"; sourceTree = "SOURCE_ROOT"; };
 		D99B064D47C6B0FDDBC66B02 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_VST3Headers.h"; path = "../../../../modules/juce_audio_processors/format_types/juce_VST3Headers.h"; sourceTree = "SOURCE_ROOT"; };
 		DA918320EF4057DF54FF8909 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_ActionBroadcaster.h"; path = "../../../../modules/juce_events/broadcasters/juce_ActionBroadcaster.h"; sourceTree = "SOURCE_ROOT"; };
 		DA9E577DC37123CEA41C4A71 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_WaitableEvent.h"; path = "../../../../modules/juce_core/threads/juce_WaitableEvent.h"; sourceTree = "SOURCE_ROOT"; };
@@ -1268,6 +1269,7 @@
 					B03CEB6B84C7C8D1840CEFF3,
 					559B3E6098105A8DDC50BB00,
 					24BB3E009554E23697C3E545,
+					BDA398F8994B73F18840B3D7,
 					5E0882CA277CB65EBD9292BD,
 					09E43355AE1252B8AB082EE1,
 					401D435B1E3BB47A7861FA01,
diff --git a/extras/audio plugin host/Builds/VisualStudio2010/Plugin Host.vcxproj b/extras/audio plugin host/Builds/VisualStudio2010/Plugin Host.vcxproj
index 44eee9cdcf..152b444456 100644
--- a/extras/audio plugin host/Builds/VisualStudio2010/Plugin Host.vcxproj	
+++ b/extras/audio plugin host/Builds/VisualStudio2010/Plugin Host.vcxproj	
@@ -1403,6 +1403,7 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileOutputStream.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_WildcardFileFilter.h"/>
     <ClInclude Include="..\..\..\..\modules\juce_core\network\juce_IPAddress.h"/>
diff --git a/extras/audio plugin host/Builds/VisualStudio2010/Plugin Host.vcxproj.filters b/extras/audio plugin host/Builds/VisualStudio2010/Plugin Host.vcxproj.filters
index e6753c409f..4b1b00482e 100644
--- a/extras/audio plugin host/Builds/VisualStudio2010/Plugin Host.vcxproj.filters	
+++ b/extras/audio plugin host/Builds/VisualStudio2010/Plugin Host.vcxproj.filters	
@@ -2019,6 +2019,9 @@
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h">
+      <Filter>Juce Modules\juce_core\files</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.h">
       <Filter>Juce Modules\juce_core\files</Filter>
     </ClInclude>
diff --git a/extras/binarybuilder/Builds/MacOSX/BinaryBuilder.xcodeproj/project.pbxproj b/extras/binarybuilder/Builds/MacOSX/BinaryBuilder.xcodeproj/project.pbxproj
index 6adf1205aa..ba01590e20 100644
--- a/extras/binarybuilder/Builds/MacOSX/BinaryBuilder.xcodeproj/project.pbxproj
+++ b/extras/binarybuilder/Builds/MacOSX/BinaryBuilder.xcodeproj/project.pbxproj
@@ -191,6 +191,7 @@
 		E567893A13638D89E587A05F = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_HashMap.h"; path = "../../../../modules/juce_core/containers/juce_HashMap.h"; sourceTree = "SOURCE_ROOT"; };
 		E65C9F48923EBD7095AC22BE = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_Time.h"; path = "../../../../modules/juce_core/time/juce_Time.h"; sourceTree = "SOURCE_ROOT"; };
 		E78ABDF9EE10A85BCFFE6547 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_ReadWriteLock.h"; path = "../../../../modules/juce_core/threads/juce_ReadWriteLock.h"; sourceTree = "SOURCE_ROOT"; };
+		E81CF0C0DBC2F446E7F5DE22 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_MountedVolumeListChangeDetector.h"; path = "../../../../modules/juce_core/files/juce_MountedVolumeListChangeDetector.h"; sourceTree = "SOURCE_ROOT"; };
 		E8B73F6E0763B9DF3750FAB3 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_ScopedPointer.h"; path = "../../../../modules/juce_core/memory/juce_ScopedPointer.h"; sourceTree = "SOURCE_ROOT"; };
 		E8B77D4E2961231D77CF4335 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_XmlElement.cpp"; path = "../../../../modules/juce_core/xml/juce_XmlElement.cpp"; sourceTree = "SOURCE_ROOT"; };
 		E8DBF269C8CA4C66F025EAFC = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_win32_SystemStats.cpp"; path = "../../../../modules/juce_core/native/juce_win32_SystemStats.cpp"; sourceTree = "SOURCE_ROOT"; };
@@ -330,6 +331,7 @@
 					2CABCBBC0306C649739EB0E1,
 					D80D6FEE7D4BFF3981A82259,
 					5C3BCD09CD3AD887041C5E8D,
+					E81CF0C0DBC2F446E7F5DE22,
 					2D0CC061BF40931BC88D5DB0,
 					44AD87BBBC83CEEE8C9BAC8C,
 					86DAAF05DA38EA19AEE4FAA3,
diff --git a/extras/binarybuilder/Builds/VisualStudio2008/BinaryBuilder.vcproj b/extras/binarybuilder/Builds/VisualStudio2008/BinaryBuilder.vcproj
index 73571eca66..64108cfb99 100644
--- a/extras/binarybuilder/Builds/VisualStudio2008/BinaryBuilder.vcproj
+++ b/extras/binarybuilder/Builds/VisualStudio2008/BinaryBuilder.vcproj
@@ -540,6 +540,7 @@
           </File>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+          <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.cpp">
             <FileConfiguration Name="Debug|Win32"
                                ExcludedFromBuild="true">
diff --git a/extras/example projects/Builds/MacOSX/HelloWorld.xcodeproj/project.pbxproj b/extras/example projects/Builds/MacOSX/HelloWorld.xcodeproj/project.pbxproj
index 54931f33f4..5e1157ce5d 100644
--- a/extras/example projects/Builds/MacOSX/HelloWorld.xcodeproj/project.pbxproj	
+++ b/extras/example projects/Builds/MacOSX/HelloWorld.xcodeproj/project.pbxproj	
@@ -555,6 +555,7 @@
 		D06CEB2AEDFB98E1406E06F7 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_DirectoryContentsDisplayComponent.h"; path = "../../../../modules/juce_gui_basics/filebrowser/juce_DirectoryContentsDisplayComponent.h"; sourceTree = "SOURCE_ROOT"; };
 		D071023526C8D2E38D1C95C5 = {isa = PBXFileReference; lastKnownFileType = file.nib; name = RecentFilesMenuTemplate.nib; path = RecentFilesMenuTemplate.nib; sourceTree = "SOURCE_ROOT"; };
 		D0B7D5B46558A7393B43C79B = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_MenuBarComponent.h"; path = "../../../../modules/juce_gui_basics/menus/juce_MenuBarComponent.h"; sourceTree = "SOURCE_ROOT"; };
+		D30AAFB7AED975895A926905 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_MountedVolumeListChangeDetector.h"; path = "../../../../modules/juce_core/files/juce_MountedVolumeListChangeDetector.h"; sourceTree = "SOURCE_ROOT"; };
 		D45C31982C2D140B6B64D1C7 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_SplashScreen.h"; path = "../../../../modules/juce_gui_extra/misc/juce_SplashScreen.h"; sourceTree = "SOURCE_ROOT"; };
 		D49594C439C67202647804D2 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_Value.h"; path = "../../../../modules/juce_data_structures/values/juce_Value.h"; sourceTree = "SOURCE_ROOT"; };
 		D4ED28003B9120E85F5CD490 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_StringArray.h"; path = "../../../../modules/juce_core/text/juce_StringArray.h"; sourceTree = "SOURCE_ROOT"; };
@@ -786,6 +787,7 @@
 					AF388A883A899EBF58A39D68,
 					BDA5AC3B903F05E4ACBD16DC,
 					C79D5D6DDCC88F29C3616761,
+					D30AAFB7AED975895A926905,
 					1CAE226BEF2243B1FA8CC646,
 					F5FD842A428369A565BC92E4,
 					83F74BA834946705EB9ED79C,
diff --git a/extras/example projects/Builds/VisualStudio2005/HelloWorld.vcproj b/extras/example projects/Builds/VisualStudio2005/HelloWorld.vcproj
index de6908c84a..cce1addca0 100644
--- a/extras/example projects/Builds/VisualStudio2005/HelloWorld.vcproj	
+++ b/extras/example projects/Builds/VisualStudio2005/HelloWorld.vcproj	
@@ -542,6 +542,7 @@
           </File>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+          <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.cpp">
             <FileConfiguration Name="Debug|Win32"
                                ExcludedFromBuild="true">
diff --git a/extras/example projects/Builds/VisualStudio2008/HelloWorld.vcproj b/extras/example projects/Builds/VisualStudio2008/HelloWorld.vcproj
index 7659c08b0c..4274b38ac3 100644
--- a/extras/example projects/Builds/VisualStudio2008/HelloWorld.vcproj	
+++ b/extras/example projects/Builds/VisualStudio2008/HelloWorld.vcproj	
@@ -542,6 +542,7 @@
           </File>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+          <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.cpp">
             <FileConfiguration Name="Debug|Win32"
                                ExcludedFromBuild="true">
diff --git a/extras/example projects/Builds/iOS/HelloWorld.xcodeproj/project.pbxproj b/extras/example projects/Builds/iOS/HelloWorld.xcodeproj/project.pbxproj
index 724f4e6346..d5d5f9d7ec 100644
--- a/extras/example projects/Builds/iOS/HelloWorld.xcodeproj/project.pbxproj	
+++ b/extras/example projects/Builds/iOS/HelloWorld.xcodeproj/project.pbxproj	
@@ -553,6 +553,7 @@
 		CF9F9D13FD1B7ED219092643 = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = "juce_MouseListener.cpp"; path = "../../../../modules/juce_gui_basics/mouse/juce_MouseListener.cpp"; sourceTree = "SOURCE_ROOT"; };
 		D06CEB2AEDFB98E1406E06F7 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_DirectoryContentsDisplayComponent.h"; path = "../../../../modules/juce_gui_basics/filebrowser/juce_DirectoryContentsDisplayComponent.h"; sourceTree = "SOURCE_ROOT"; };
 		D0B7D5B46558A7393B43C79B = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_MenuBarComponent.h"; path = "../../../../modules/juce_gui_basics/menus/juce_MenuBarComponent.h"; sourceTree = "SOURCE_ROOT"; };
+		D30AAFB7AED975895A926905 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_MountedVolumeListChangeDetector.h"; path = "../../../../modules/juce_core/files/juce_MountedVolumeListChangeDetector.h"; sourceTree = "SOURCE_ROOT"; };
 		D45C31982C2D140B6B64D1C7 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_SplashScreen.h"; path = "../../../../modules/juce_gui_extra/misc/juce_SplashScreen.h"; sourceTree = "SOURCE_ROOT"; };
 		D49594C439C67202647804D2 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_Value.h"; path = "../../../../modules/juce_data_structures/values/juce_Value.h"; sourceTree = "SOURCE_ROOT"; };
 		D4ED28003B9120E85F5CD490 = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "juce_StringArray.h"; path = "../../../../modules/juce_core/text/juce_StringArray.h"; sourceTree = "SOURCE_ROOT"; };
@@ -786,6 +787,7 @@
 					AF388A883A899EBF58A39D68,
 					BDA5AC3B903F05E4ACBD16DC,
 					C79D5D6DDCC88F29C3616761,
+					D30AAFB7AED975895A926905,
 					1CAE226BEF2243B1FA8CC646,
 					F5FD842A428369A565BC92E4,
 					83F74BA834946705EB9ED79C,
diff --git a/extras/windows dll/Builds/VisualStudio2008/juce_dll.vcproj b/extras/windows dll/Builds/VisualStudio2008/juce_dll.vcproj
index 99c961ef64..97036a297d 100644
--- a/extras/windows dll/Builds/VisualStudio2008/juce_dll.vcproj	
+++ b/extras/windows dll/Builds/VisualStudio2008/juce_dll.vcproj	
@@ -1463,6 +1463,7 @@
           </File>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_FileSearchPath.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MemoryMappedFile.h"/>
+          <File RelativePath="..\..\..\..\modules\juce_core\files\juce_MountedVolumeListChangeDetector.h"/>
           <File RelativePath="..\..\..\..\modules\juce_core\files\juce_TemporaryFile.cpp">
             <FileConfiguration Name="Debug|Win32"
                                ExcludedFromBuild="true">
diff --git a/modules/juce_core/files/juce_MountedVolumeListChangeDetector.h b/modules/juce_core/files/juce_MountedVolumeListChangeDetector.h
new file mode 100644
index 0000000000..3fbbe37d47
--- /dev/null
+++ b/modules/juce_core/files/juce_MountedVolumeListChangeDetector.h
@@ -0,0 +1,63 @@
+/*
+  ==============================================================================
+
+   This file is part of the juce_core module of the JUCE library.
+   Copyright (c) 2013 - Raw Material Software Ltd.
+
+   Permission to use, copy, modify, and/or distribute this software for any purpose with
+   or without fee is hereby granted, provided that the above copyright notice and this
+   permission notice appear in all copies.
+
+   THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+   TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+   NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+   DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+   IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+   CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ------------------------------------------------------------------------------
+
+   NOTE! This permissive ISC license applies ONLY to files within the juce_core module!
+   All other JUCE modules are covered by a dual GPL/commercial license, so if you are
+   using any other modules, be sure to check that you also comply with their license.
+
+   For more details, visit www.juce.com
+
+  ==============================================================================
+*/
+
+#ifndef JUCE_MOUNTEDVOLUMELISTCHANGEDETECTOR_H_INCLUDED
+#define JUCE_MOUNTEDVOLUMELISTCHANGEDETECTOR_H_INCLUDED
+
+#if JUCE_MAC || JUCE_WINDOWS || defined (DOXYGEN)
+
+//==============================================================================
+/**
+    An instance of this class will provide callbacks when drives are
+    mounted or unmounted on the system.
+
+    Just inherit from this class and implement the pure virtual method
+    to get the callbacks, there's no need to do anything else.
+
+    @see File::findFileSystemRoots()
+*/
+class JUCE_API  MountedVolumeListChangeDetector
+{
+public:
+    MountedVolumeListChangeDetector();
+    virtual ~MountedVolumeListChangeDetector();
+
+    /** This method is called when a volume is mounted or unmounted. */
+    virtual void mountedVolumeListChanged() = 0;
+
+private:
+    JUCE_PUBLIC_IN_DLL_BUILD (struct Pimpl)
+    friend struct ContainerDeletePolicy<Pimpl>;
+    ScopedPointer<Pimpl> pimpl;
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MountedVolumeListChangeDetector)
+};
+
+#endif
+
+#endif   // JUCE_MOUNTEDVOLUMELISTCHANGEDETECTOR_H_INCLUDED
diff --git a/modules/juce_core/juce_core.h b/modules/juce_core/juce_core.h
index ce5219ee83..abb85cde98 100644
--- a/modules/juce_core/juce_core.h
+++ b/modules/juce_core/juce_core.h
@@ -235,6 +235,7 @@ extern JUCE_API void JUCE_CALLTYPE logAssertion (const char* file, int line) noe
 #include "files/juce_TemporaryFile.h"
 #include "files/juce_FileFilter.h"
 #include "files/juce_WildcardFileFilter.h"
+#include "files/juce_MountedVolumeListChangeDetector.h"
 #include "streams/juce_FileInputSource.h"
 #include "logging/juce_FileLogger.h"
 #include "javascript/juce_JSON.h"
diff --git a/modules/juce_core/native/juce_mac_Files.mm b/modules/juce_core/native/juce_mac_Files.mm
index 0a00e92124..d79ef6ca21 100644
--- a/modules/juce_core/native/juce_mac_Files.mm
+++ b/modules/juce_core/native/juce_mac_Files.mm
@@ -398,6 +398,55 @@ bool DirectoryIterator::NativeIterator::next (String& filenameFound,
     return pimpl->next (filenameFound, isDir, isHidden, fileSize, modTime, creationTime, isReadOnly);
 }
 
+//==============================================================================
+#if JUCE_MAC
+struct MountedVolumeListChangeDetector::Pimpl
+{
+    Pimpl (MountedVolumeListChangeDetector& d)  : owner (d)
+    {
+        static ObserverClass cls;
+        delegate = [cls.createInstance() init];
+        ObserverClass::setOwner (delegate, this);
+
+        NSNotificationCenter* nc = [[NSWorkspace sharedWorkspace] notificationCenter];
+
+        [nc addObserver: delegate selector: @selector (changed:) name: NSWorkspaceDidMountNotification   object: nil];
+        [nc addObserver: delegate selector: @selector (changed:) name: NSWorkspaceDidUnmountNotification object: nil];
+    }
+
+    ~Pimpl()
+    {
+        [[[NSWorkspace sharedWorkspace] notificationCenter] removeObserver: delegate];
+        [delegate release];
+    }
+
+private:
+    MountedVolumeListChangeDetector& owner;
+    id delegate;
+
+    struct ObserverClass   : public ObjCClass<NSObject>
+    {
+        ObserverClass()  : ObjCClass<NSObject> ("JUCEDriveObserver_")
+        {
+            addIvar<Pimpl*> ("owner");
+            addMethod (@selector (changed:), changed, "v@:@");
+            addProtocol (@protocol (NSTextInput));
+            registerClass();
+        }
+
+        static Pimpl* getOwner (id self)                { return getIvar<Pimpl*> (self, "owner"); }
+        static void setOwner (id self, Pimpl* owner)    { object_setInstanceVariable (self, "owner", owner); }
+
+        static void changed (id self, SEL, NSNotification*)
+        {
+            getOwner (self)->owner.mountedVolumeListChanged();
+        }
+    };
+};
+
+MountedVolumeListChangeDetector::MountedVolumeListChangeDetector()  { pimpl = new Pimpl (*this); }
+MountedVolumeListChangeDetector::~MountedVolumeListChangeDetector() {}
+#endif
 
 //==============================================================================
 bool JUCE_CALLTYPE Process::openDocument (const String& fileName, const String& parameters)
diff --git a/modules/juce_core/native/juce_win32_Files.cpp b/modules/juce_core/native/juce_win32_Files.cpp
index a77aa5aaca..3c49514b6c 100644
--- a/modules/juce_core/native/juce_win32_Files.cpp
+++ b/modules/juce_core/native/juce_win32_Files.cpp
@@ -741,6 +741,34 @@ bool DirectoryIterator::NativeIterator::next (String& filenameFound,
 }
 
 
+//==============================================================================
+struct MountedVolumeListChangeDetector::Pimpl   : private DeviceChangeDetector
+{
+    Pimpl (MountedVolumeListChangeDetector& d) : DeviceChangeDetector (L"MountedVolumeList"), owner (d)
+    {
+        File::findFileSystemRoots (lastVolumeList);
+    }
+
+    void systemDeviceChanged() override
+    {
+        Array<File> newList;
+        File::findFileSystemRoots (newList);
+
+        if (lastVolumeList != newList)
+        {
+            lastVolumeList = newList;
+            owner.mountedVolumeListChanged();
+        }
+    }
+
+    MountedVolumeListChangeDetector& owner;
+    Array<File> lastVolumeList;
+};
+
+MountedVolumeListChangeDetector::MountedVolumeListChangeDetector()  { pimpl = new Pimpl (*this); }
+MountedVolumeListChangeDetector::~MountedVolumeListChangeDetector() {}
+
+
 //==============================================================================
 bool JUCE_CALLTYPE Process::openDocument (const String& fileName, const String& parameters)
 {