diff --git a/Emby.Server.Implementations/IO/FileRefresher.cs b/Emby.Server.Implementations/IO/FileRefresher.cs
index d4914e734e..b2554049d1 100644
--- a/Emby.Server.Implementations/IO/FileRefresher.cs
+++ b/Emby.Server.Implementations/IO/FileRefresher.cs
@@ -130,14 +130,6 @@ namespace Emby.Server.Implementations.IO
                 paths = _affectedPaths.ToList();
             }
 
-            // Extend the timer as long as any of the paths are still being written to.
-            if (paths.Any(IsFileLocked))
-            {
-                Logger.Info("Timer extended.");
-                RestartTimer();
-                return;
-            }
-
             Logger.Debug("Timer stopped.");
 
             DisposeTimer();
@@ -229,90 +221,6 @@ namespace Emby.Server.Implementations.IO
             return item;
         }
 
-        private bool IsFileLocked(string path)
-        {
-            if (_environmentInfo.OperatingSystem != MediaBrowser.Model.System.OperatingSystem.Windows)
-            {
-                // Causing lockups on linux
-                return false;
-            }
-
-            // Only try to open video files
-            if (!_libraryManager.IsVideoFile(path))
-            {
-                return false;
-            }
-
-            try
-            {
-                var data = _fileSystem.GetFileSystemInfo(path);
-
-                if (!data.Exists
-                    || data.IsDirectory
-
-                    // Opening a writable stream will fail with readonly files
-                    || data.IsReadOnly)
-                {
-                    return false;
-                }
-            }
-            catch (IOException)
-            {
-                return false;
-            }
-            catch (Exception ex)
-            {
-                Logger.ErrorException("Error getting file system info for: {0}", ex, path);
-                return false;
-            }
-
-            // In order to determine if the file is being written to, we have to request write access
-            // But if the server only has readonly access, this is going to cause this entire algorithm to fail
-            // So we'll take a best guess about our access level
-            //var requestedFileAccess = ConfigurationManager.Configuration.SaveLocalMeta
-            //    ? FileAccessMode.ReadWrite
-            //    : FileAccessMode.Read;
-
-            var requestedFileAccess = FileAccessMode.Read;
-            try
-            {
-                using (_fileSystem.GetFileStream(path, FileOpenMode.Open, requestedFileAccess, FileShareMode.ReadWrite))
-                {
-                    //file is not locked
-                    return false;
-                }
-            }
-            catch (DirectoryNotFoundException)
-            {
-                // File may have been deleted
-                return false;
-            }
-            catch (FileNotFoundException)
-            {
-                // File may have been deleted
-                return false;
-            }
-            catch (UnauthorizedAccessException)
-            {
-                Logger.Debug("No write permission for: {0}.", path);
-                return false;
-            }
-            catch (IOException)
-            {
-                //the file is unavailable because it is:
-                //still being written to
-                //or being processed by another thread
-                //or does not exist (has already been processed)
-                Logger.Debug("{0} is locked.", path);
-                return true;
-            }
-            catch (Exception ex)
-            {
-                Logger.ErrorException("Error determining if file is locked: {0}", ex, path);
-                return false;
-            }
-        }
-
         private void DisposeTimer()
         {
             lock (_timerLock)
diff --git a/Emby.Server.Implementations/MediaEncoder/EncodingManager.cs b/Emby.Server.Implementations/MediaEncoder/EncodingManager.cs
index 181a49034e..60379f5ec6 100644
--- a/Emby.Server.Implementations/MediaEncoder/EncodingManager.cs
+++ b/Emby.Server.Implementations/MediaEncoder/EncodingManager.cs
@@ -122,17 +122,11 @@ namespace Emby.Server.Implementations.MediaEncoder
                             continue;
                         }
 
-                        List<string> playableStreamFileNames = null;
                         if (video.VideoType == VideoType.BluRay || video.VideoType == VideoType.Dvd)
                         {
                             continue;
                         }
 
-                        if (playableStreamFileNames == null)
-                        {
-                            playableStreamFileNames = new List<string>();
-                        }
-
                         try
                         {
                             // Add some time for the first chapter to make sure we don't end up with a black image
@@ -140,7 +134,7 @@ namespace Emby.Server.Implementations.MediaEncoder
 
                             var protocol = MediaProtocol.File;
 
-                            var inputPath = MediaEncoderHelpers.GetInputArgument(_fileSystem, video.Path, protocol, null, playableStreamFileNames);
+                            var inputPath = MediaEncoderHelpers.GetInputArgument(_fileSystem, video.Path, protocol, null, new List<string>());
 
                             _fileSystem.CreateDirectory(_fileSystem.GetDirectoryName(path));
 
diff --git a/MediaBrowser.Providers/MediaInfo/VideoImageProvider.cs b/MediaBrowser.Providers/MediaInfo/VideoImageProvider.cs
index cdf5772c23..0d0b680bdb 100644
--- a/MediaBrowser.Providers/MediaInfo/VideoImageProvider.cs
+++ b/MediaBrowser.Providers/MediaInfo/VideoImageProvider.cs
@@ -45,7 +45,7 @@ namespace MediaBrowser.Providers.MediaInfo
             }
 
             // No support for this
-            if (video.VideoType == VideoType.Iso)
+            if (video.VideoType == VideoType.Iso || video.VideoType == VideoType.Dvd || video.VideoType == VideoType.BluRay)
             {
                 return Task.FromResult(new DynamicImageResponse { HasImage = false });
             }