diff --git a/src/ffx/ffx.py b/src/ffx/ffx.py
index 04c69f4..7a6ec36 100755
--- a/src/ffx/ffx.py
+++ b/src/ffx/ffx.py
@@ -426,7 +426,7 @@ def convert(ctx,
     or if the filename has not changed."""
 
     startTime = time.perf_counter()
-    
+
     context = ctx.obj
     
     context['video_encoder'] = VideoEncoder.fromLabel(video_encoder)
@@ -633,6 +633,16 @@ def convert(ctx,
 
         sourceMediaDescriptor = mediaFileProperties.getMediaDescriptor()
 
+
+        if ([smd for smd in sourceMediaDescriptor.getSubtitleTracks()
+                    if smd.getCodec() == TrackCodec.ASS]
+                and [amd for amd in sourceMediaDescriptor.getAttachmentTracks()
+                    if amd.getCodec() == TrackCodec.TTF]):
+            
+            targetFormat = ''
+            targetExtension = 'mkv'
+
+
         #HINT: This is None if the filename did not match anything in database
         currentPattern = mediaFileProperties.getPattern() if context['use_pattern'] else None
 
diff --git a/src/ffx/media_descriptor.py b/src/ffx/media_descriptor.py
index 6b4d0ee..65cbd0f 100644
--- a/src/ffx/media_descriptor.py
+++ b/src/ffx/media_descriptor.py
@@ -320,6 +320,13 @@ class MediaDescriptor:
             if s.getType() == TrackType.SUBTITLE
         ]
 
+    def getAttachmentTracks(self) -> List[TrackDescriptor]:
+        return [
+            s
+            for s in self.__trackDescriptors
+            if s.getType() == TrackType.ATTACHMENT
+        ]
+
 
     def getImportFileTokens(self, use_sub_index: bool = True):
         """Generate ffmpeg import options for external stream files"""
@@ -366,12 +373,14 @@ class MediaDescriptor:
                 stdsi = sortedTrackDescriptors[td.getSourceIndex()].getSubIndex()
 
                 trackType = td.getType()
+                trackCodec = td.getCodec()
 
                 if (trackType == TrackType.VIDEO or not only_video):
 
+
                     importedFilePath = td.getExternalSourceFilePath()
 
-                    if use_sub_index:
+                    if use_sub_index and not (trackType == TrackType.ATTACHMENT and trackCodec == TrackCodec.TTF):
 
                         if importedFilePath:
 
@@ -383,16 +392,17 @@ class MediaDescriptor:
 
                         else:
 
-                            if not td.getCodec() in [TrackCodec.PGS, TrackCodec.VOBSUB]:
+                            if not trackCodec in [TrackCodec.PGS, TrackCodec.VOBSUB]:
                                 inputMappingTokens += [
                                     "-map",
                                     f"0:{trackType.indicator()}:{stdsi}",
                                 ]
 
                     else:
-                        if not td.getCodec() in [TrackCodec.PGS, TrackCodec.VOBSUB]:
+                        if not trackCodec in [TrackCodec.PGS, TrackCodec.VOBSUB]:
                             inputMappingTokens += ["-map", f"0:{stdi}"]
 
+
         return inputMappingTokens
 
 
diff --git a/src/ffx/track_codec.py b/src/ffx/track_codec.py
index dfd415b..f560715 100644
--- a/src/ffx/track_codec.py
+++ b/src/ffx/track_codec.py
@@ -16,6 +16,7 @@ class TrackCodec(Enum):
 
     SRT  =      {'identifier': 'subrip',             'format': 'srt',        'extension': 'srt'  , 'label':  'SRT'}
     ASS  =      {'identifier': 'ass',                'format': 'ass',        'extension': 'ass'  , 'label':  'ASS'}
+    TTF  =      {'identifier': 'ttf',                'format': None,         'extension': 'ttf'  , 'label':  'TTF'}
     PGS  =      {'identifier': 'hdmv_pgs_subtitle',  'format': 'sup',        'extension': 'sup'  , 'label':  'PGS'}
     VOBSUB =    {'identifier': 'dvd_subtitle',       'format': None,         'extension': 'mkv'  , 'label':  'VobSub'}
 
diff --git a/src/ffx/track_type.py b/src/ffx/track_type.py
index 6775325..5c8a7f0 100644
--- a/src/ffx/track_type.py
+++ b/src/ffx/track_type.py
@@ -5,6 +5,7 @@ class TrackType(Enum):
     VIDEO       = {'label': 'video', 'index': 1}
     AUDIO       = {'label': 'audio', 'index': 2}
     SUBTITLE    = {'label': 'subtitle', 'index': 3}
+    ATTACHMENT  = {'label': 'attachment', 'index': 4}
 
     UNKNOWN    = {'label': 'unknown', 'index': 0}