diff --git a/src/Logic/SubtitleFormats/ScenaristClosedCaptions.cs b/src/Logic/SubtitleFormats/ScenaristClosedCaptions.cs
index 70bdbad52..e6043f645 100644
--- a/src/Logic/SubtitleFormats/ScenaristClosedCaptions.cs
+++ b/src/Logic/SubtitleFormats/ScenaristClosedCaptions.cs
@@ -31,7 +31,10 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
         }
 
         //00:01:00:29   9420 9420 94ae 94ae 94d0 94d0 4920 f761 7320 ...    semi colon (instead of colon) before frame number is used to indicate drop frame
-        static readonly Regex RegexTimeCodes = new Regex(@"^\d+:\d\d:\d\d[:;,]\d\d\t", RegexOptions.Compiled);
+        private const string _timeCodeRegEx = @"^\d+:\d\d:\d\d[:,]\d\d\t";
+        protected virtual Regex RegexTimeCodes { get { return new Regex(_timeCodeRegEx); } }
+        protected bool DropFrame = false;
+
 
         private static readonly List<string> _letters = new List<string>
                                                      {
@@ -734,6 +737,8 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
         private string ToTimeCode(double totalMilliseconds)
         {
             TimeSpan ts = TimeSpan.FromMilliseconds(totalMilliseconds);
+            if (DropFrame)
+                return string.Format("{0:00}:{1:00}:{2:00};{3:00}", ts.Hours, ts.Minutes, ts.Seconds, MillisecondsToFramesMaxFrameRate(ts.Milliseconds));
             return string.Format("{0:00}:{1:00}:{2:00}:{3:00}", ts.Hours, ts.Minutes, ts.Seconds, MillisecondsToFramesMaxFrameRate(ts.Milliseconds));
         }
 
diff --git a/src/Logic/SubtitleFormats/ScenaristClosedCaptionsDropFrame.cs b/src/Logic/SubtitleFormats/ScenaristClosedCaptionsDropFrame.cs
new file mode 100644
index 000000000..a64a0fbb0
--- /dev/null
+++ b/src/Logic/SubtitleFormats/ScenaristClosedCaptionsDropFrame.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
+{
+
+    public class ScenaristClosedCaptionsDropFrame : ScenaristClosedCaptions
+    {
+        //00:01:00:29   9420 9420 94ae 94ae 94d0 94d0 4920 f761 7320 ...    semi colon (instead of colon) before frame number is used to indicate drop frame
+        private const string _timeCodeRegEx = @"^\d+:\d\d:\d\d[;,]\d\d\t";
+        protected override Regex RegexTimeCodes { get { return new Regex(_timeCodeRegEx); } }
+
+        public ScenaristClosedCaptionsDropFrame()
+        {
+            DropFrame = true;
+        }
+
+        public override string Name
+        {
+            get { return "Scenarist Closed Captions Drop Frame"; }
+        }
+    }
+}
+
+
diff --git a/src/Logic/SubtitleFormats/SubtitleFormat.cs b/src/Logic/SubtitleFormats/SubtitleFormat.cs
index 3a3882a41..69fdd161b 100644
--- a/src/Logic/SubtitleFormats/SubtitleFormat.cs
+++ b/src/Logic/SubtitleFormats/SubtitleFormat.cs
@@ -87,6 +87,7 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
                     new SamiModern(),
                     new Scenarist(),
                     new ScenaristClosedCaptions(),
+                    new ScenaristClosedCaptionsDropFrame(),
                     new SmilTimesheetData(),
                     new SonyDVDArchitect(),
                     new SonyDVDArchitectExplicitDuration(),
diff --git a/src/SubtitleEdit.csproj b/src/SubtitleEdit.csproj
index b0cb8a606..fd8bebf26 100644
--- a/src/SubtitleEdit.csproj
+++ b/src/SubtitleEdit.csproj
@@ -849,6 +849,7 @@
     <Compile Include="Logic\SubtitleFormats\CaraokeXml.cs" />
     <Compile Include="Logic\SubtitleFormats\Cavena890.cs" />
     <Compile Include="Logic\SubtitleFormats\CheetahCaption.cs" />
+    <Compile Include="Logic\SubtitleFormats\ScenaristClosedCaptionsDropFrame.cs" />
     <Compile Include="Logic\SubtitleFormats\FinalCutProXCM.cs" />
     <Compile Include="Logic\SubtitleFormats\UnknownSubtitle67.cs" />
     <Compile Include="Logic\SubtitleFormats\SwiftTextLineNumber .cs" />