diff --git a/Changelog.txt b/Changelog.txt
index 01ae6a75a..9811b8e6f 100644
--- a/Changelog.txt
+++ b/Changelog.txt
@@ -45,7 +45,7 @@
    * Do not reapeat colors in color picker - thx SDH Marven
    * Fix cmd line convert issue with ebu stl headerfile - thx Rumczeis
    * Fix image export missing error for last two lines - th Antoine
-   * Fix "Merge short lines" in "Batch Conv" to use UI settings - thx maharaj12 
+   * Fix "Batch Convert" "Merge short lines" UI settings - thx maharaj12 
    * Fix casing issue in Remove text for HI - thx Petar
 
 
diff --git a/src/libse/SubtitleFormats/MacCaption10.cs b/src/libse/SubtitleFormats/MacCaption10.cs
index 116df798e..98468917a 100644
--- a/src/libse/SubtitleFormats/MacCaption10.cs
+++ b/src/libse/SubtitleFormats/MacCaption10.cs
@@ -16,7 +16,7 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
         public override string Name => "MacCaption 1.0";
 
         // ANC data bytes may be represented by one ASCII character according to the following schema:
-        private static Dictionary<char, string> _ancDictionary = new Dictionary<char, string>
+        private static readonly Dictionary<char, string> AncDictionary = new Dictionary<char, string>
         {
             { 'G', "FA0000" },
             { 'H', "FA0000FA0000" },
@@ -240,7 +240,7 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
             var sb = new StringBuilder();
             foreach (var ch in input)
             {
-                if (_ancDictionary.TryGetValue(ch, out var hexValue))
+                if (AncDictionary.TryGetValue(ch, out var hexValue))
                 {
                     sb.Append(hexValue);
                 }
diff --git a/src/libse/SubtitleFormats/TimeCodesOnly3.cs b/src/libse/SubtitleFormats/TimeCodesOnly3.cs
new file mode 100644
index 000000000..cf7d4d7b4
--- /dev/null
+++ b/src/libse/SubtitleFormats/TimeCodesOnly3.cs
@@ -0,0 +1,73 @@
+using Nikse.SubtitleEdit.Core.Common;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace Nikse.SubtitleEdit.Core.SubtitleFormats
+{
+    public class TimeCodesOnly3 : SubtitleFormat
+    {
+        // 01:00:00:15
+        private static readonly Regex RegexTimeCodes = new Regex(@"^\d+:\d\d:\d\d:\d\d$", RegexOptions.Compiled);
+
+        public override string Extension => ".txt";
+
+        public const string NameOfFormat = "Time Codes Only 3";
+
+        public override string Name => NameOfFormat;
+
+        public override string ToText(Subtitle subtitle, string title)
+        {
+            var sb = new StringBuilder();
+            foreach (var p in subtitle.Paragraphs)
+            {
+                sb.AppendLine($"{EncodeTimeCode(p.StartTime)}");
+            }
+
+            return sb.ToString();
+        }
+
+        private static string EncodeTimeCode(TimeCode time)
+        {
+            return $"{time.Hours}:{time.Minutes:00}:{time.Seconds:00}:{MillisecondsToFramesMaxFrameRate(time.Milliseconds):00}";
+        }
+
+        public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
+        {
+            Paragraph p = null;
+            subtitle.Paragraphs.Clear();
+            _errorCount = 0;
+            foreach (var line in lines)
+            {
+                if (RegexTimeCodes.IsMatch(line))
+                {
+                    var startParts = line.Split(SplitCharColon, StringSplitOptions.RemoveEmptyEntries);
+                    if (startParts.Length == 4)
+                    {
+                        p = new Paragraph(DecodeTimeCodeFramesFourParts(startParts), DecodeTimeCodeFramesFourParts(startParts), string.Empty);
+                        p.EndTime.TotalMilliseconds += Configuration.Settings.General.NewEmptyDefaultMs;
+
+                        subtitle.Paragraphs.Add(p);
+
+                        var prev = subtitle.GetParagraphOrDefault(subtitle.GetIndex(p) - 1);
+                        if (prev != null)
+                        {
+                            if (prev.EndTime.TotalMilliseconds > p.StartTime.TotalMilliseconds)
+                            {
+                                prev.EndTime.TotalMilliseconds = p.StartTime.TotalMilliseconds - Configuration.Settings.General.MinimumMillisecondsBetweenLines;
+                            }
+                        }
+                    }
+                }
+                else if (p != null)
+                {
+                    _errorCount++;
+                }
+            }
+
+
+            subtitle.Renumber();
+        }
+    }
+}
diff --git a/src/ui/Forms/Main.cs b/src/ui/Forms/Main.cs
index cc4335fc6..16d715456 100644
--- a/src/ui/Forms/Main.cs
+++ b/src/ui/Forms/Main.cs
@@ -20946,12 +20946,6 @@ namespace Nikse.SubtitleEdit.Forms
 
         private void toolStripMenuItemImportTimeCodes_Click(object sender, EventArgs e)
         {
-            if (_subtitle.Paragraphs.Count < 1)
-            {
-                DisplaySubtitleNotLoadedMessage();
-                return;
-            }
-
             openFileDialog1.Title = _languageGeneral.OpenSubtitle;
             openFileDialog1.FileName = string.Empty;
             openFileDialog1.Filter = UiUtil.SubtitleExtensionFilter.Value;
@@ -20987,7 +20981,8 @@ namespace Nikse.SubtitleEdit.Forms
                     var formats = SubtitleFormat.GetBinaryFormats(true).Union(SubtitleFormat.GetTextOtherFormats()).Union(new SubtitleFormat[]
                     {
                         new TimeCodesOnly1(),
-                        new TimeCodesOnly2()
+                        new TimeCodesOnly2(),
+                        new TimeCodesOnly3(),
                     }).ToArray();
                     format = SubtitleFormat.LoadSubtitleFromFile(formats, openFileDialog1.FileName, timeCodeSubtitle);
                 }
@@ -20998,6 +20993,22 @@ namespace Nikse.SubtitleEdit.Forms
                     return;
                 }
 
+                if (_subtitle.Paragraphs.Count < 1)
+                {
+                    foreach (var p in timeCodeSubtitle.Paragraphs)
+                    {
+                        p.Text = string.Empty;
+                    }
+
+                    _subtitle.Paragraphs.AddRange(timeCodeSubtitle.Paragraphs);
+                    _converted = true;
+                    _fileName = string.Empty;
+                    _subtitleListViewIndex = -1;
+                    ShowStatus(string.Format(_language.LoadedSubtitleX, openFileDialog1.FileName));
+                    SubtitleListview1.Fill(_subtitle, _subtitleOriginal);
+                    RestoreSubtitleListviewIndices();
+                }
+
                 if (timeCodeSubtitle.Paragraphs.Count != _subtitle.Paragraphs.Count)
                 {
                     var text = string.Format(_language.ImportTimeCodesDifferentNumberOfLinesWarning, timeCodeSubtitle.Paragraphs.Count, _subtitle.Paragraphs.Count);