Fixed: Parser no longer chokes on titles with a file extension and invalid path characters such as :.

src/NzbDrone.Core.Test/ParserTests/ParserFixture.cs

@@ -52,6 +52,12 @@ namespace NzbDrone.Core.Test.ParserTests
             title.CleanSeriesTitle().Should().Be("carnivale");
         }
 
+        [TestCase("Discovery TV - Gold Rush : 02 Road From Hell [S04].mp4")]
+        public void should_clean_up_invalid_path_characters(String postTitle)
+        {
+            Parser.Parser.ParseTitle(postTitle);
+        }
+
         [TestCase("[scnzbefnet][509103] 2.Broke.Girls.S03E18.720p.HDTV.X264-DIMENSION", "2 Broke Girls")]
         public void should_remove_request_info_from_title(String postTitle, String title)
         {

src/NzbDrone.Core/Parser/Parser.cs

@@ -138,6 +138,9 @@ namespace NzbDrone.Core.Parser
         private static readonly Regex NormalizeRegex = new Regex(@"((?:\b|_)(?<!^)(a|an|the|and|or|of)(?:\b|_))|\W|_",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
+        private static readonly Regex FileExtensionRegex = new Regex(@"\.[a-z0-9]{2,4}$",
+                                                                RegexOptions.IgnoreCase | RegexOptions.Compiled);
+
         private static readonly Regex SimpleTitleRegex = new Regex(@"480[i|p]|720[i|p]|1080[i|p]|[xh][\W_]?264|DD\W?5\W1|\<|\>|\?|\*|\:|\||848x480|1280x720|1920x1080|8bit|10bit",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
@@ -371,14 +374,18 @@ namespace NzbDrone.Core.Parser
 
         public static string RemoveFileExtension(string title)
         {
-            if (!title.ContainsInvalidPathChars())
+            title = FileExtensionRegex.Replace(title, m =>
                 {
-                var extension = Path.GetExtension(title).ToLower();
+                    var extension = m.Value.ToLower();
                     if (MediaFiles.MediaFileExtensions.Extensions.Contains(extension) || new[] { ".par2", ".nzb" }.Contains(extension))
                     {
-                    title = Path.Combine(Path.GetDirectoryName(title), Path.GetFileNameWithoutExtension(title));
+                        return String.Empty;
                     }
+                    else
+                    {
+                        return m.Value;
                     }
+                });
 
             return title;
         }