[Mosu]

Note that I make no guarantees whatsoever that the track IDs mkvmerge requires will match the ones that MediaInfo outputs. I only guarantee that the IDs that mkvmerge's identification outputs are the ones you need to use with mkvmerge and mkvextract. Only mkvmerge knows which tracks it supports; MediaInfo can only guess and may get it wrong. It usually doesn't, but that's no guarantee. You've been warned.