diff --git a/OpenRA.Game/InstallUtils.cs b/OpenRA.Game/InstallUtils.cs
index 0bfbb641c8..57f7800d83 100644
--- a/OpenRA.Game/InstallUtils.cs
+++ b/OpenRA.Game/InstallUtils.cs
@@ -55,7 +55,7 @@ namespace OpenRA
 		}
 
 		// TODO: The package should be mounted into its own context to avoid name collisions with installed files
-		public static bool ExtractFromPackage(string srcPath, string package, string[] files, string destPath, Action<string> onProgress, Action<string> onError)
+		public static bool ExtractFromPackage(string srcPath, string package, string annotation, string[] files, string destPath, Action<string> onProgress, Action<string> onError)
 		{
 			if (!Directory.Exists(destPath))
 				Directory.CreateDirectory(destPath);
@@ -63,7 +63,7 @@ namespace OpenRA
 			Log.Write("debug", "Mounting {0}".F(srcPath));
 			GlobalFileSystem.Mount(srcPath);
 			Log.Write("debug", "Mounting {0}".F(package));
-			GlobalFileSystem.Mount(package);
+			GlobalFileSystem.Mount(package, annotation);
 
 			foreach (var file in files)
 			{
diff --git a/OpenRA.Mods.RA/Widgets/Logic/InstallFromCDLogic.cs b/OpenRA.Mods.RA/Widgets/Logic/InstallFromCDLogic.cs
index 7a7fe7f647..0a77e0d2ce 100644
--- a/OpenRA.Mods.RA/Widgets/Logic/InstallFromCDLogic.cs
+++ b/OpenRA.Mods.RA/Widgets/Logic/InstallFromCDLogic.cs
@@ -72,7 +72,10 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 			var dest = new string[] { Platform.SupportDir, "Content", Game.modData.Manifest.Mod.Id }.Aggregate(Path.Combine);
 			var copyFiles = Game.modData.Manifest.ContentInstaller.CopyFilesFromCD;
 
-			var extractPackage = Game.modData.Manifest.ContentInstaller.PackageToExtractFromCD;
+			var packageToExtract = Game.modData.Manifest.ContentInstaller.PackageToExtractFromCD.Split(':');
+			var extractPackage = packageToExtract.First();
+			var annotation = packageToExtract.Length > 1 ? packageToExtract.Last() : null;
+
 			var extractFiles = Game.modData.Manifest.ContentInstaller.ExtractFilesFromCD;
 
 			var installCounter = 0;
@@ -104,7 +107,7 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 
 					if (!string.IsNullOrEmpty(extractPackage))
 					{
-						if (!InstallUtils.ExtractFromPackage(source, extractPackage, extractFiles, dest, onProgress, onError))
+						if (!InstallUtils.ExtractFromPackage(source, extractPackage, annotation, extractFiles, dest, onProgress, onError))
 						{
 							onError("Extracting files from CD failed.");
 							return;
diff --git a/mods/ts/mod.yaml b/mods/ts/mod.yaml
index e53dffccb6..d9a0aa62e1 100644
--- a/mods/ts/mod.yaml
+++ b/mods/ts/mod.yaml
@@ -160,8 +160,10 @@ ContentInstaller:
 	InstallerMenuWidget: INSTALL_PANEL
 	TestFiles: cache.mix, conquer.mix, isosnow.mix, isotemp.mix, local.mix, sidec01.mix, sidec02.mix, sno.mix, snow.mix, sounds.mix, speech01.mix, tem.mix, temperat.mix
 	PackageMirrorList: http://www.openra.net/packages/ts-mirrors.txt
-	DiskTestFiles: multi.mix, install/tibsun.mix
-	CopyFilesFromCD: install/tibsun.mix, scores.mix, multi.mix
+	DiskTestFiles: MULTI.MIX, INSTALL/TIBSUN.MIX
+	CopyFilesFromCD: INSTALL/TIBSUN.MIX, SCORES.MIX, MULTI.MIX
+	PackageToExtractFromCD: INSTALL/TIBSUN.MIX:CRC32
+	ExtractFilesFromCD: cache.mix, conquer.mix, isosnow.mix, isotemp.mix, local.mix, sidec01.mix, sidec02.mix, sno.mix, snow.mix, sounds.mix, speech01.mix, tem.mix, temperat.mix
 	ShippedSoundtracks: 2
 
 ServerTraits: