When the option is activated with language/track that does not exist in the source video, then the option will lead to output video with only chosen language/track (even if it means to discard all subtitle/audio from the source).the video destination folder shouldn't be the same as source folder.You can save a log file to see everything happened.You can change subtitle settings(delay, track name, language) for each subtitle file to override global settings.If your muxing is limited to add/delete, or make old track default/forced, you can make it fast, a prompt will appear when this happen.You can set an old audio track to be default/forced.

You can set an old subtitle track to be default/forced.You can keep audios with specific language(s) or track id(s) and discard any other audio.You can keep subtitles with specific language(s) and/or track id(s) and discard any other subtitle.You can discard old attachments files from all videos.

You can reorder the chapters so that each chapter is matched with the right video.

Chapters names don't have to match videos names.

You can set subtitle delay, track name, language.

You can set subtitles to be default/forced.

You can reorder the subtitles so that each subtitle is matched with the right video.

Subtitles names don't have to match videos names.

App for muxing(merging) videos with with many options.Īpp Preview testing.mp4 Subtitles Options

Mkvtoolnix gui mux subtitles