diff --git a/MediaBrowser.Server.Implementations/IO/DirectoryWatchers.cs b/MediaBrowser.Server.Implementations/IO/DirectoryWatchers.cs
index b9b2b560b..7c362a919 100644
--- a/MediaBrowser.Server.Implementations/IO/DirectoryWatchers.cs
+++ b/MediaBrowser.Server.Implementations/IO/DirectoryWatchers.cs
@@ -369,7 +369,7 @@ namespace MediaBrowser.Server.Implementations.IO
             lock (_timerLock)
             {
                 // Extend the timer as long as any of the paths are still being written to.
-                if (_affectedPaths.Any(p => IsFileLocked(p.Key)))
+                if (_affectedPaths.Any(p => !FileSystem.GetFileSystemInfo(p.Key).Attributes.HasFlag(FileAttributes.ReadOnly) && IsFileLocked(p.Key)))
                 {
                     Logger.Info("Timer extended.");
                     _updateTimer.Change(TimeSpan.FromSeconds(ConfigurationManager.Configuration.FileWatcherDelay), TimeSpan.FromMilliseconds(-1));