Minor fix for subtitle format not beeing too 'greedy'

src/Logic/SubtitleFormats/UnknownSubtitle61.cs

@@ -114,6 +114,10 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
                 {
                     expectStartTime = true;
                 }
+                else
+                {
+                    _errorCount++;
+                }
             }
             if (p != null && p.StartTime.TotalMilliseconds > 0)
                 subtitle.Paragraphs.Add(p);

src/Logic/SubtitleFormats/UnknownSubtitle72.cs

@@ -23,7 +23,7 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
         //«Steppe»
         //Bogdan Voloshin, Yaroslavl
 
-        static readonly Regex RegexTimeCodes = new Regex(@"^\d\d:\d\d:\d\d.\d\d\d$", RegexOptions.Compiled);
+        static readonly Regex RegexTimeCodes = new Regex(@"^\d\d:\d\d:\d\d.\d{1,3}$", RegexOptions.Compiled);
 
         public override string Extension
         {
@@ -117,6 +117,10 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
                 int startMinutes = int.Parse(parts[1]);
                 int startSeconds = int.Parse(parts[2]);
                 int startMilliseconds = int.Parse(parts[3]);
+
+                if (parts[3].Length == 2)
+                    _errorCount++;
+
                 paragraph.StartTime = new TimeCode(startHours, startMinutes, startSeconds, startMilliseconds);
                 return true;
             }

src/Logic/SubtitleFormats/YouTubeTranscript.cs

@@ -75,6 +75,12 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
                         p.Text = line;
                     else
                         p.Text = p.Text + Environment.NewLine + line;
+                    
+                    if (p.Text.Length > 800)
+                    {
+                        _errorCount++;
+                        return;
+                    }
                 }
             }
             foreach (Paragraph p2 in subtitle.Paragraphs)

src/Logic/SubtitleFormats/YouTubeTranscriptOneLine.cs

@@ -68,7 +68,7 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
                 }
                 else
                 {
-                    _errorCount++;
+                    _errorCount+=2;
                 }
             }
             foreach (Paragraph p2 in subtitle.Paragraphs)

src/Logic/Utilities.cs

@@ -187,6 +187,14 @@ namespace Nikse.SubtitleEdit.Logic
             return false;
         }
 
+        public static bool IsLong(string s)
+        {
+            long i;
+            if (long.TryParse(s, out i))
+                return true;
+            return false;
+        }
+
         public static SubtitleFormat GetSubtitleFormatByFriendlyName(string friendlyName)
         {
             foreach (SubtitleFormat format in SubtitleFormat.AllSubtitleFormats)