: x264 (H.264/AVC), which is highly compatible with most smart TVs, consoles, and players.
Click "Start multiplexing" to create a new MKV file with the subtitles embedded.
If you have a separate subtitle file (like an .srt ) for this release, you can use several methods to combine them:
: Tools like Adobe Premiere Pro or Veed.io can "burn" subtitles permanently into the video frame, though this requires re-encoding the video. Technical Details of ION10 Releases Container : Usually .mkv or .mp4 .