diff --git a/BDInfo/BDROM.cs b/BDInfo/BDROM.cs
index 6759ed55ad..3a0c14ffda 100644
--- a/BDInfo/BDROM.cs
+++ b/BDInfo/BDROM.cs
@@ -212,7 +212,6 @@ namespace BDInfo
 
         public void Scan()
         {
-            var errorStreamClipFiles = new List<TSStreamClipFile>();
             foreach (var streamClipFile in StreamClipFiles.Values)
             {
                 try
@@ -221,7 +220,6 @@ namespace BDInfo
                 }
                 catch (Exception ex)
                 {
-                    errorStreamClipFiles.Add(streamClipFile);
                     if (StreamClipFileScanError != null)
                     {
                         if (StreamClipFileScanError(streamClipFile, ex))
@@ -250,7 +248,6 @@ namespace BDInfo
             StreamFiles.Values.CopyTo(streamFiles, 0);
             Array.Sort(streamFiles, CompareStreamFiles);
 
-            var errorPlaylistFiles = new List<TSPlaylistFile>();
             foreach (var playlistFile in PlaylistFiles.Values)
             {
                 try
@@ -259,7 +256,6 @@ namespace BDInfo
                 }
                 catch (Exception ex)
                 {
-                    errorPlaylistFiles.Add(playlistFile);
                     if (PlaylistFileScanError != null)
                     {
                         if (PlaylistFileScanError(playlistFile, ex))
@@ -275,7 +271,6 @@ namespace BDInfo
                 }
             }
 
-            var errorStreamFiles = new List<TSStreamFile>();
             foreach (var streamFile in streamFiles)
             {
                 try
@@ -296,7 +291,6 @@ namespace BDInfo
                 }
                 catch (Exception ex)
                 {
-                    errorStreamFiles.Add(streamFile);
                     if (StreamFileScanError != null)
                     {
                         if (StreamFileScanError(streamFile, ex))
@@ -431,7 +425,7 @@ namespace BDInfo
             {
                 return 1;
             }
-            else if ((x != null || x.FileInfo != null) && (y == null || y.FileInfo == null))
+            else if ((x != null && x.FileInfo != null) && (y == null || y.FileInfo == null))
             {
                 return -1;
             }
@@ -451,6 +445,5 @@ namespace BDInfo
                 }
             }
         }
-
     }
 }
diff --git a/Emby.Server.Implementations/Dto/DtoService.cs b/Emby.Server.Implementations/Dto/DtoService.cs
index 75192a8f1a..a3201f0bc0 100644
--- a/Emby.Server.Implementations/Dto/DtoService.cs
+++ b/Emby.Server.Implementations/Dto/DtoService.cs
@@ -218,14 +218,12 @@ namespace Emby.Server.Implementations.Dto
                 AttachUserSpecificInfo(dto, item, user, options);
             }
 
-            if (item is IHasMediaSources hasMediaSources)
+            if (item is IHasMediaSources
+                && options.ContainsField(ItemFields.MediaSources))
             {
-                if (options.ContainsField(ItemFields.MediaSources))
-                {
-                    dto.MediaSources = _mediaSourceManager().GetStaticMediaSources(item, true, user).ToArray();
+                dto.MediaSources = _mediaSourceManager().GetStaticMediaSources(item, true, user).ToArray();
 
-                    NormalizeMediaSourceContainers(dto);
-                }
+                NormalizeMediaSourceContainers(dto);
             }
 
             if (options.ContainsField(ItemFields.Studios))
diff --git a/Emby.Server.Implementations/HttpServer/Security/AuthService.cs b/Emby.Server.Implementations/HttpServer/Security/AuthService.cs
index 3d3f67ca22..93a61fe67a 100644
--- a/Emby.Server.Implementations/HttpServer/Security/AuthService.cs
+++ b/Emby.Server.Implementations/HttpServer/Security/AuthService.cs
@@ -51,7 +51,7 @@ namespace Emby.Server.Implementations.HttpServer.Security
 
             var user = auth.User;
 
-            if (user == null & !auth.UserId.Equals(Guid.Empty))
+            if (user == null && auth.UserId != Guid.Empty)
             {
                 throw new SecurityException("User with Id " + auth.UserId + " not found");
             }
diff --git a/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs b/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs
index f1ae2fc9c0..8bdb387843 100644
--- a/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs
+++ b/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs
@@ -57,7 +57,6 @@ namespace Emby.Server.Implementations.Library
             }
 
             var filename = fileInfo.Name;
-            var path = fileInfo.FullName;
 
             // Ignore hidden files on UNIX
             if (Environment.OSVersion.Platform != PlatformID.Win32NT
diff --git a/Emby.Server.Implementations/Library/UserManager.cs b/Emby.Server.Implementations/Library/UserManager.cs
index ac6b4a2099..52b2f56ffc 100644
--- a/Emby.Server.Implementations/Library/UserManager.cs
+++ b/Emby.Server.Implementations/Library/UserManager.cs
@@ -273,14 +273,12 @@ namespace Emby.Server.Implementations.Library
             var user = Users.FirstOrDefault(i => string.Equals(username, i.Name, StringComparison.OrdinalIgnoreCase));
 
             var success = false;
-            string updatedUsername = null;
             IAuthenticationProvider authenticationProvider = null;
 
             if (user != null)
             {
                 var authResult = await AuthenticateLocalUser(username, password, hashedPassword, user, remoteEndPoint).ConfigureAwait(false);
                 authenticationProvider = authResult.authenticationProvider;
-                updatedUsername = authResult.username;
                 success = authResult.success;
             }
             else
@@ -288,7 +286,7 @@ namespace Emby.Server.Implementations.Library
                 // user is null
                 var authResult = await AuthenticateLocalUser(username, password, hashedPassword, null, remoteEndPoint).ConfigureAwait(false);
                 authenticationProvider = authResult.authenticationProvider;
-                updatedUsername = authResult.username;
+                string updatedUsername = authResult.username;
                 success = authResult.success;
 
                 if (success
diff --git a/Emby.Server.Implementations/Library/UserViewManager.cs b/Emby.Server.Implementations/Library/UserViewManager.cs
index 4d79cae139..88e2a8fa69 100644
--- a/Emby.Server.Implementations/Library/UserViewManager.cs
+++ b/Emby.Server.Implementations/Library/UserViewManager.cs
@@ -236,7 +236,7 @@ namespace Emby.Server.Implementations.Library
             if (!parentId.Equals(Guid.Empty))
             {
                 var parentItem = _libraryManager.GetItemById(parentId);
-                if (parentItem is Channel parentItemChannel)
+                if (parentItem is Channel)
                 {
                     return _channelManager.GetLatestChannelItemsInternal(
                         new InternalItemsQuery(user)
@@ -248,7 +248,7 @@ namespace Emby.Server.Implementations.Library
                             IncludeItemTypes = request.IncludeItemTypes,
                             EnableTotalRecordCount = false
                         },
-                        CancellationToken.None).Result.Items;
+                        CancellationToken.None).GetAwaiter().GetResult().Items;
                 }
 
                 if (parentItem is Folder parent)
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
index 3cc0541e74..cc9c8e5d29 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
@@ -208,9 +208,6 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
         private static string GetAudioArgs(MediaSourceInfo mediaSource)
         {
-            var mediaStreams = mediaSource.MediaStreams ?? new List<MediaStream>();
-            var inputAudioCodec = mediaStreams.Where(i => i.Type == MediaStreamType.Audio).Select(i => i.Codec).FirstOrDefault() ?? string.Empty;
-
             return "-codec:a:0 copy";
 
             //var audioChannels = 2;
diff --git a/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs b/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs
index f5dffc22af..9a4c91d0bd 100644
--- a/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs
+++ b/Emby.Server.Implementations/LiveTv/Listings/SchedulesDirect.cs
@@ -17,7 +17,6 @@ using MediaBrowser.Model.LiveTv;
 using MediaBrowser.Model.Net;
 using MediaBrowser.Model.Serialization;
 using Microsoft.Extensions.Logging;
-using Microsoft.Net.Http.Headers;
 
 namespace Emby.Server.Implementations.LiveTv.Listings
 {
@@ -41,6 +40,12 @@ namespace Emby.Server.Implementations.LiveTv.Listings
 
         private string UserAgent => _appHost.ApplicationUserAgent;
 
+        /// <inheritdoc />
+        public string Name => "Schedules Direct";
+
+        /// <inheritdoc />
+        public string Type => nameof(SchedulesDirect);
+
         private static List<string> GetScheduleRequestDates(DateTime startDateUtc, DateTime endDateUtc)
         {
             var dates = new List<string>();
@@ -103,7 +108,6 @@ namespace Emby.Server.Implementations.LiveTv.Listings
             httpOptions.RequestHeaders["token"] = token;
 
             using (var response = await Post(httpOptions, true, info).ConfigureAwait(false))
-            using (var reader = new StreamReader(response.Content))
             {
                 var dailySchedules = await _jsonSerializer.DeserializeFromStreamAsync<List<ScheduleDirect.Day>>(response.Content).ConfigureAwait(false);
                 _logger.LogDebug("Found {ScheduleCount} programs on {ChannelID} ScheduleDirect", dailySchedules.Count, channelId);
@@ -122,7 +126,6 @@ namespace Emby.Server.Implementations.LiveTv.Listings
                 httpOptions.RequestContent = "[\"" + string.Join("\", \"", programsID) + "\"]";
 
                 using (var innerResponse = await Post(httpOptions, true, info).ConfigureAwait(false))
-                using (var innerReader = new StreamReader(innerResponse.Content))
                 {
                     var programDetails = await _jsonSerializer.DeserializeFromStreamAsync<List<ScheduleDirect.ProgramDetails>>(innerResponse.Content).ConfigureAwait(false);
                     var programDict = programDetails.ToDictionary(p => p.programID, y => y);
@@ -152,14 +155,14 @@ namespace Emby.Server.Implementations.LiveTv.Listings
                                 var imagesWithText = allImages.Where(i => string.Equals(i.text, "yes", StringComparison.OrdinalIgnoreCase));
                                 var imagesWithoutText = allImages.Where(i => string.Equals(i.text, "no", StringComparison.OrdinalIgnoreCase));
 
-                                const double desiredAspect = 0.666666667;
+                                const double DesiredAspect = 2.0 / 3;
 
-                                programEntry.primaryImage = GetProgramImage(ApiUrl, imagesWithText, true, desiredAspect) ??
-                                    GetProgramImage(ApiUrl, allImages, true, desiredAspect);
+                                programEntry.primaryImage = GetProgramImage(ApiUrl, imagesWithText, true, DesiredAspect) ??
+                                    GetProgramImage(ApiUrl, allImages, true, DesiredAspect);
 
-                                const double wideAspect = 1.77777778;
+                                const double WideAspect = 16.0 / 9;
 
-                                programEntry.thumbImage = GetProgramImage(ApiUrl, imagesWithText, true, wideAspect);
+                                programEntry.thumbImage = GetProgramImage(ApiUrl, imagesWithText, true, WideAspect);
 
                                 // Don't supply the same image twice
                                 if (string.Equals(programEntry.primaryImage, programEntry.thumbImage, StringComparison.Ordinal))
@@ -167,7 +170,7 @@ namespace Emby.Server.Implementations.LiveTv.Listings
                                     programEntry.thumbImage = null;
                                 }
 
-                                programEntry.backdropImage = GetProgramImage(ApiUrl, imagesWithoutText, true, wideAspect);
+                                programEntry.backdropImage = GetProgramImage(ApiUrl, imagesWithoutText, true, WideAspect);
 
                                 //programEntry.bannerImage = GetProgramImage(ApiUrl, data, "Banner", false) ??
                                 //    GetProgramImage(ApiUrl, data, "Banner-L1", false) ??
@@ -178,6 +181,7 @@ namespace Emby.Server.Implementations.LiveTv.Listings
 
                         programsInfo.Add(GetProgram(channelId, schedule, programDict[schedule.programID]));
                     }
+
                     return programsInfo;
                 }
             }
@@ -185,12 +189,10 @@ namespace Emby.Server.Implementations.LiveTv.Listings
 
         private static int GetSizeOrder(ScheduleDirect.ImageData image)
         {
-            if (!string.IsNullOrWhiteSpace(image.height))
+            if (!string.IsNullOrWhiteSpace(image.height)
+                && int.TryParse(image.height, out int value))
             {
-                if (int.TryParse(image.height, out int value))
-                {
-                    return value;
-                }
+                return value;
             }
 
             return 0;
@@ -736,16 +738,11 @@ namespace Emby.Server.Implementations.LiveTv.Listings
 
             httpOptions.RequestHeaders["token"] = token;
 
-            using (var response = await _httpClient.SendAsync(httpOptions, "PUT"))
+            using (await _httpClient.SendAsync(httpOptions, "PUT"))
             {
             }
         }
 
-        public string Name => "Schedules Direct";
-
-        public static string TypeName = "SchedulesDirect";
-        public string Type => TypeName;
-
         private async Task<bool> HasLineup(ListingsProviderInfo info, CancellationToken cancellationToken)
         {
             if (string.IsNullOrEmpty(info.ListingsId))
diff --git a/Emby.Server.Implementations/LiveTv/LiveTvManager.cs b/Emby.Server.Implementations/LiveTv/LiveTvManager.cs
index ee975e19a5..89b92c999e 100644
--- a/Emby.Server.Implementations/LiveTv/LiveTvManager.cs
+++ b/Emby.Server.Implementations/LiveTv/LiveTvManager.cs
@@ -60,16 +60,6 @@ namespace Emby.Server.Implementations.LiveTv
         private IListingsProvider[] _listingProviders = Array.Empty<IListingsProvider>();
         private readonly IFileSystem _fileSystem;
 
-        public event EventHandler<GenericEventArgs<TimerEventInfo>> SeriesTimerCancelled;
-        public event EventHandler<GenericEventArgs<TimerEventInfo>> TimerCancelled;
-        public event EventHandler<GenericEventArgs<TimerEventInfo>> TimerCreated;
-        public event EventHandler<GenericEventArgs<TimerEventInfo>> SeriesTimerCreated;
-
-        public string GetEmbyTvActiveRecordingPath(string id)
-        {
-            return EmbyTV.EmbyTV.Current.GetActiveRecordingPath(id);
-        }
-
         public LiveTvManager(
             IServerApplicationHost appHost,
             IServerConfigurationManager config,
@@ -102,17 +92,34 @@ namespace Emby.Server.Implementations.LiveTv
             _tvDtoService = new LiveTvDtoService(dtoService, imageProcessor, loggerFactory, appHost, _libraryManager);
         }
 
+        public event EventHandler<GenericEventArgs<TimerEventInfo>> SeriesTimerCancelled;
+
+        public event EventHandler<GenericEventArgs<TimerEventInfo>> TimerCancelled;
+
+        public event EventHandler<GenericEventArgs<TimerEventInfo>> TimerCreated;
+
+        public event EventHandler<GenericEventArgs<TimerEventInfo>> SeriesTimerCreated;
+
         /// <summary>
         /// Gets the services.
         /// </summary>
         /// <value>The services.</value>
         public IReadOnlyList<ILiveTvService> Services => _services;
 
+        public ITunerHost[] TunerHosts => _tunerHosts;
+
+        public IListingsProvider[] ListingProviders => _listingProviders;
+
         private LiveTvOptions GetConfiguration()
         {
             return _config.GetConfiguration<LiveTvOptions>("livetv");
         }
 
+        public string GetEmbyTvActiveRecordingPath(string id)
+        {
+            return EmbyTV.EmbyTV.Current.GetActiveRecordingPath(id);
+        }
+
         /// <summary>
         /// Adds the parts.
         /// </summary>
@@ -130,13 +137,13 @@ namespace Emby.Server.Implementations.LiveTv
             {
                 if (service is EmbyTV.EmbyTV embyTv)
                 {
-                    embyTv.TimerCreated += EmbyTv_TimerCreated;
-                    embyTv.TimerCancelled += EmbyTv_TimerCancelled;
+                    embyTv.TimerCreated += OnEmbyTvTimerCreated;
+                    embyTv.TimerCancelled += OnEmbyTvTimerCancelled;
                 }
             }
         }
 
-        private void EmbyTv_TimerCancelled(object sender, GenericEventArgs<string> e)
+        private void OnEmbyTvTimerCancelled(object sender, GenericEventArgs<string> e)
         {
             var timerId = e.Argument;
 
@@ -149,10 +156,9 @@ namespace Emby.Server.Implementations.LiveTv
             });
         }
 
-        private void EmbyTv_TimerCreated(object sender, GenericEventArgs<TimerInfo> e)
+        private void OnEmbyTvTimerCreated(object sender, GenericEventArgs<TimerInfo> e)
         {
             var timer = e.Argument;
-            var service = sender as ILiveTvService;
 
             TimerCreated?.Invoke(this, new GenericEventArgs<TimerEventInfo>
             {
@@ -164,10 +170,6 @@ namespace Emby.Server.Implementations.LiveTv
             });
         }
 
-        public ITunerHost[] TunerHosts => _tunerHosts;
-
-        public IListingsProvider[] ListingProviders => _listingProviders;
-
         public List<NameIdPair> GetTunerHostTypes()
         {
             return _tunerHosts.OrderBy(i => i.Name).Select(i => new NameIdPair
@@ -966,9 +968,6 @@ namespace Emby.Server.Implementations.LiveTv
 
         private async Task AddRecordingInfo(IEnumerable<Tuple<BaseItemDto, string, string>> programs, CancellationToken cancellationToken)
         {
-            var timers = new Dictionary<string, List<TimerInfo>>();
-            var seriesTimers = new Dictionary<string, List<SeriesTimerInfo>>();
-
             IReadOnlyList<TimerInfo> timerList = null;
             IReadOnlyList<SeriesTimerInfo> seriesTimerList = null;
 
@@ -1601,8 +1600,6 @@ namespace Emby.Server.Implementations.LiveTv
 
             if (!string.IsNullOrEmpty(query.Id))
             {
-                var guid = new Guid(query.Id);
-
                 timers = timers
                     .Where(i => string.Equals(_tvDtoService.GetInternalTimerId(i.Item1.Id), query.Id, StringComparison.OrdinalIgnoreCase));
             }
diff --git a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs
index 3699b988c6..9702392b29 100644
--- a/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs
+++ b/Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs
@@ -424,14 +424,14 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
                 return false;
             }
 
-            var nameTag = buf[offset++];
+            offset++; // Name Tag
 
             var nameLength = buf[offset++];
 
             // skip the name field to get to value for return
             offset += nameLength;
 
-            var valueTag = buf[offset++];
+            offset++; // Value Tag
 
             var valueLength = buf[offset++];
 
diff --git a/Emby.Server.Implementations/Services/StringMapTypeDeserializer.cs b/Emby.Server.Implementations/Services/StringMapTypeDeserializer.cs
index c27eb76865..23e22afd58 100644
--- a/Emby.Server.Implementations/Services/StringMapTypeDeserializer.cs
+++ b/Emby.Server.Implementations/Services/StringMapTypeDeserializer.cs
@@ -15,7 +15,7 @@ namespace Emby.Server.Implementations.Services
             {
                 PropertySetFn = propertySetFn;
                 PropertyParseStringFn = propertyParseStringFn;
-                PropertyType = PropertyType;
+                PropertyType = propertyType;
             }
 
             public Action<object, object> PropertySetFn { get; private set; }
diff --git a/Jellyfin.Server/Jellyfin.Server.csproj b/Jellyfin.Server/Jellyfin.Server.csproj
index 35f0c84cbe..fa3e9cb35d 100644
--- a/Jellyfin.Server/Jellyfin.Server.csproj
+++ b/Jellyfin.Server/Jellyfin.Server.csproj
@@ -22,7 +22,7 @@
     <EmbeddedResource Include="Resources/Configuration/*" />
   </ItemGroup>
 
-  <!-- Code analysers-->
+  <!-- Code analyzers-->
   <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
     <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.4" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" />
diff --git a/MediaBrowser.Api/UserLibrary/ItemsService.cs b/MediaBrowser.Api/UserLibrary/ItemsService.cs
index ada540ba6a..b4a3026480 100644
--- a/MediaBrowser.Api/UserLibrary/ItemsService.cs
+++ b/MediaBrowser.Api/UserLibrary/ItemsService.cs
@@ -455,9 +455,7 @@ namespace MediaBrowser.Api.UserLibrary
                         IncludeItemTypes = new[] { typeof(MusicAlbum).Name },
                         Name = i,
                         Limit = 1
-
-                    }).Select(albumId => albumId);
-
+                    });
                 }).ToArray();
             }
 
diff --git a/MediaBrowser.Common/Extensions/BaseExtensions.cs b/MediaBrowser.Common/Extensions/BaseExtensions.cs
index 40c16b9573..33473c2be7 100644
--- a/MediaBrowser.Common/Extensions/BaseExtensions.cs
+++ b/MediaBrowser.Common/Extensions/BaseExtensions.cs
@@ -14,20 +14,20 @@ namespace MediaBrowser.Common.Extensions
         /// Strips the HTML.
         /// </summary>
         /// <param name="htmlString">The HTML string.</param>
-        /// <returns>System.String.</returns>
+        /// <returns><see cref="string" />.</returns>
         public static string StripHtml(this string htmlString)
         {
             // http://stackoverflow.com/questions/1349023/how-can-i-strip-html-from-text-in-net
-            const string pattern = @"<(.|\n)*?>";
+            const string Pattern = @"<(.|\n)*?>";
 
-            return Regex.Replace(htmlString, pattern, string.Empty).Trim();
+            return Regex.Replace(htmlString, Pattern, string.Empty).Trim();
         }
 
         /// <summary>
-        /// Gets the M d5.
+        /// Gets the Md5.
         /// </summary>
-        /// <param name="str">The STR.</param>
-        /// <returns>Guid.</returns>
+        /// <param name="str">The string.</param>
+        /// <returns><see cref="Guid" />.</returns>
         public static Guid GetMD5(this string str)
         {
             using (var provider = MD5.Create())
diff --git a/MediaBrowser.Common/Extensions/CollectionExtensions.cs b/MediaBrowser.Common/Extensions/CollectionExtensions.cs
index 3bc0295a02..75b9f59f87 100644
--- a/MediaBrowser.Common/Extensions/CollectionExtensions.cs
+++ b/MediaBrowser.Common/Extensions/CollectionExtensions.cs
@@ -5,13 +5,28 @@ namespace MediaBrowser.Common.Extensions
     // The MS CollectionExtensions are only available in netcoreapp
     public static class CollectionExtensions
     {
-        public static TValue GetValueOrDefault<TKey, TValue> (this IReadOnlyDictionary<TKey, TValue> dictionary, TKey key)
+        public static TValue GetValueOrDefault<TKey, TValue>(this IReadOnlyDictionary<TKey, TValue> dictionary, TKey key)
         {
             dictionary.TryGetValue(key, out var ret);
             return ret;
         }
 
-        // REVIEW: Inline?
+        /// <summary>
+        /// Copies all the elements of the current collection to the specified list
+        /// starting at the specified destination array index. The index is specified as a 32-bit integer.
+        /// </summary>
+        /// <param name="source">The current collection that is the source of the elements.</param>
+        /// <param name="destination">The list that is the destination of the elements copied from the current collection.</param>
+        /// <param name="index">A 32-bit integer that represents the index in <c>destination</c> at which copying begins.</param>
+        /// <typeparam name="T"></typeparam>
+        public static void CopyTo<T>(this IReadOnlyList<T> source, IList<T> destination, int index = 0)
+        {
+            for (int i = 0; i < source.Count; i++)
+            {
+                destination[index + i] = source[i];
+            }
+        }
+
         /// <summary>
         /// Copies all the elements of the current collection to the specified list
         /// starting at the specified destination array index. The index is specified as a 32-bit integer.
diff --git a/MediaBrowser.Controller/Entities/BaseItem.cs b/MediaBrowser.Controller/Entities/BaseItem.cs
index 0e9f7ee443..369f63b13d 100644
--- a/MediaBrowser.Controller/Entities/BaseItem.cs
+++ b/MediaBrowser.Controller/Entities/BaseItem.cs
@@ -2045,7 +2045,7 @@ namespace MediaBrowser.Controller.Entities
 
                 if (itemByPath == null)
                 {
-                    //Logger.LogWarning("Unable to find linked item at path {0}", info.Path);
+                    Logger.LogWarning("Unable to find linked item at path {0}", info.Path);
                 }
 
                 return itemByPath;
@@ -2057,7 +2057,7 @@ namespace MediaBrowser.Controller.Entities
 
                 if (item == null)
                 {
-                    //Logger.LogWarning("Unable to find linked item at path {0}", info.Path);
+                    Logger.LogWarning("Unable to find linked item at path {0}", info.Path);
                 }
 
                 return item;
@@ -2085,14 +2085,17 @@ namespace MediaBrowser.Controller.Entities
 
             if (!current.Contains(name, StringComparer.OrdinalIgnoreCase))
             {
-                if (current.Length == 0)
+                int curLen = current.Length;
+                if (curLen == 0)
                 {
                     Studios = new[] { name };
                 }
                 else
                 {
-                    var list =
-                    Studios = current.Concat(new[] { name }).ToArray();
+                    var newArr = new string[curLen + 1];
+                    current.CopyTo(newArr, 0);
+                    newArr[curLen] = name;
+                    Studios = newArr;
                 }
             }
         }
@@ -2231,8 +2234,12 @@ namespace MediaBrowser.Controller.Entities
 
             else
             {
-                var currentCount = ImageInfos.Length;
-                ImageInfos = ImageInfos.Concat(new[] { image }).ToArray();
+                var current = ImageInfos;
+                var currentCount = current.Length;
+                var newArr = new ItemImageInfo[currentCount + 1];
+                current.CopyTo(newArr, 0);
+                current[currentCount] = image;
+                ImageInfos = current;
             }
         }
 
diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
index 841205d0ce..eb3d2ab810 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
@@ -1252,9 +1252,6 @@ namespace MediaBrowser.Controller.MediaEncoding
         {
             if (request.AudioBitRate.HasValue)
             {
-                // Make sure we don't request a bitrate higher than the source
-                var currentBitrate = audioStream == null ? request.AudioBitRate.Value : audioStream.BitRate ?? request.AudioBitRate.Value;
-
                 // Don't encode any higher than this
                 return Math.Min(384000, request.AudioBitRate.Value);
             }
diff --git a/MediaBrowser.LocalMetadata/Savers/BaseXmlSaver.cs b/MediaBrowser.LocalMetadata/Savers/BaseXmlSaver.cs
index 19009e5771..bd727bcdf9 100644
--- a/MediaBrowser.LocalMetadata/Savers/BaseXmlSaver.cs
+++ b/MediaBrowser.LocalMetadata/Savers/BaseXmlSaver.cs
@@ -158,8 +158,6 @@ namespace MediaBrowser.LocalMetadata.Savers
         /// <returns>Task.</returns>
         public static void AddCommonNodes(BaseItem item, XmlWriter writer, ILibraryManager libraryManager, IUserManager userManager, IUserDataManager userDataRepo, IFileSystem fileSystem, IServerConfigurationManager config)
         {
-            var writtenProviderIds = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
-
             if (!string.IsNullOrEmpty(item.OfficialRating))
             {
                 writer.WriteElementString("ContentRating", item.OfficialRating);
diff --git a/MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs b/MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs
index 9ddfb9b01e..d5fa76c3ab 100644
--- a/MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs
+++ b/MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs
@@ -506,12 +506,12 @@ namespace MediaBrowser.MediaEncoding.Subtitles
 
             if (failed)
             {
-                var msg = string.Format("ffmpeg subtitle conversion failed for {Path}", inputPath);
+                _logger.LogError("ffmpeg subtitle conversion failed for {Path}", inputPath);
 
-                _logger.LogError(msg);
-
-                throw new Exception(msg);
+                throw new Exception(
+                    string.Format(CultureInfo.InvariantCulture, "ffmpeg subtitle conversion failed for {0}", inputPath));
             }
+
             await SetAssFont(outputPath).ConfigureAwait(false);
 
             _logger.LogInformation("ffmpeg subtitle conversion succeeded for {Path}", inputPath);
diff --git a/MediaBrowser.XbmcMetadata/Savers/EpisodeNfoSaver.cs b/MediaBrowser.XbmcMetadata/Savers/EpisodeNfoSaver.cs
index aa28fded11..091c1957eb 100644
--- a/MediaBrowser.XbmcMetadata/Savers/EpisodeNfoSaver.cs
+++ b/MediaBrowser.XbmcMetadata/Savers/EpisodeNfoSaver.cs
@@ -31,7 +31,7 @@ namespace MediaBrowser.XbmcMetadata.Savers
 
         /// <inheritdoc />
         public override bool IsEnabledFor(BaseItem item, ItemUpdateType updateType)
-            => !item.SupportsLocalMetadata && item is Episode && updateType >= MinimumUpdateType;
+            => item.SupportsLocalMetadata && item is Episode && updateType >= MinimumUpdateType;
 
         /// <inheritdoc />
         protected override void WriteCustomElements(BaseItem item, XmlWriter writer)
diff --git a/RSSDP/SsdpDevicePublisher.cs b/RSSDP/SsdpDevicePublisher.cs
index 7f3e56394b..53b740052b 100644
--- a/RSSDP/SsdpDevicePublisher.cs
+++ b/RSSDP/SsdpDevicePublisher.cs
@@ -86,7 +86,6 @@ namespace Rssdp.Infrastructure
 
             ThrowIfDisposed();
 
-            var minCacheTime = TimeSpan.Zero;
             bool wasAdded = false;
             lock (_Devices)
             {
@@ -94,7 +93,6 @@ namespace Rssdp.Infrastructure
                 {
                     _Devices.Add(device);
                     wasAdded = true;
-                    minCacheTime = GetMinimumNonZeroCacheLifetime();
                 }
             }
 
@@ -120,14 +118,12 @@ namespace Rssdp.Infrastructure
             if (device == null) throw new ArgumentNullException(nameof(device));
 
             bool wasRemoved = false;
-            var minCacheTime = TimeSpan.Zero;
             lock (_Devices)
             {
                 if (_Devices.Contains(device))
                 {
                     _Devices.Remove(device);
                     wasRemoved = true;
-                    minCacheTime = GetMinimumNonZeroCacheLifetime();
                 }
             }