diff --git a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
index 2e96f8cb0..884ec0a29 100644
--- a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
+++ b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
@@ -29,7 +29,7 @@ namespace MediaBrowser.MediaEncoding.Probing
         private readonly ILogger _logger;
         private readonly ILocalizationManager _localization;
 
-        private List<string> _splitWhiteList = null;
+        private string[] _splitWhiteList;
 
         public ProbeResultNormalizer(ILogger logger, ILocalizationManager localization)
         {
@@ -37,6 +37,8 @@ namespace MediaBrowser.MediaEncoding.Probing
             _localization = localization;
         }
 
+        private IReadOnlyList<string> SplitWhitelist => _splitWhiteList ??= new string[] { "AC/DC" };
+
         public MediaInfo GetMediaInfo(InternalMediaInfoResult data, VideoType? videoType, bool isAudio, string path, MediaProtocol protocol)
         {
             var info = new MediaInfo
@@ -1254,7 +1256,7 @@ namespace MediaBrowser.MediaEncoding.Probing
 
             var artistsFound = new List<string>();
 
-            foreach (var whitelistArtist in GetSplitWhitelist())
+            foreach (var whitelistArtist in SplitWhitelist)
             {
                 var originalVal = val;
                 val = val.Replace(whitelistArtist, "|", StringComparison.OrdinalIgnoreCase);
@@ -1273,11 +1275,6 @@ namespace MediaBrowser.MediaEncoding.Probing
             return artistsFound;
         }
 
-        private IEnumerable<string> GetSplitWhitelist()
-        {
-            return _splitWhiteList ??= new List<string> { "AC/DC" };
-        }
-
         /// <summary>
         /// Gets the studios from the tags collection.
         /// </summary>
diff --git a/MediaBrowser.Providers/Subtitles/SubtitleManager.cs b/MediaBrowser.Providers/Subtitles/SubtitleManager.cs
index 8d62343cb..bf0c853ae 100644
--- a/MediaBrowser.Providers/Subtitles/SubtitleManager.cs
+++ b/MediaBrowser.Providers/Subtitles/SubtitleManager.cs
@@ -207,7 +207,7 @@ namespace MediaBrowser.Providers.Subtitles
                 {
                     var mediaFolderPath = Path.GetFullPath(Path.Combine(video.ContainingFolderPath, saveFileName));
                     // TODO: Add some error handling to the API user: return BadRequest("Could not save subtitle, bad path.");
-                    if (mediaFolderPath.StartsWith(video.ContainingFolderPath))
+                    if (mediaFolderPath.StartsWith(video.ContainingFolderPath, StringComparison.Ordinal))
                     {
                         savePaths.Add(mediaFolderPath);
                     }
@@ -216,7 +216,7 @@ namespace MediaBrowser.Providers.Subtitles
                 var internalPath = Path.GetFullPath(Path.Combine(video.GetInternalMetadataPath(), saveFileName));
 
                 // TODO: Add some error to the user: return BadRequest("Could not save subtitle, bad path.");
-                if (internalPath.StartsWith(video.GetInternalMetadataPath()))
+                if (internalPath.StartsWith(video.GetInternalMetadataPath(), StringComparison.Ordinal))
                 {
                     savePaths.Add(internalPath);
                 }
@@ -234,7 +234,7 @@ namespace MediaBrowser.Providers.Subtitles
 
         private async Task TrySaveToFiles(Stream stream, List<string> savePaths)
         {
-            Exception exceptionToThrow = null;
+            List<Exception> exs = null;
 
             foreach (var savePath in savePaths)
             {
@@ -256,7 +256,7 @@ namespace MediaBrowser.Providers.Subtitles
                 }
                 catch (Exception ex)
                 {
-                    exceptionToThrow ??= ex;
+                    (exs ??= new List<Exception>()).Add(ex);
                 }
                 finally
                 {
@@ -266,9 +266,9 @@ namespace MediaBrowser.Providers.Subtitles
                 stream.Position = 0;
             }
 
-            if (exceptionToThrow != null)
+            if (exs != null)
             {
-                throw exceptionToThrow;
+                throw new AggregateException(exs);
             }
         }