Subtitles are another kind of stream aside from video/audio.
Also there's one user-level aspect of MKV that makes it not too surprising to me: It can contain any number of video/audio/subtitle streams and the interface needs some way of allowing the user to pick between them. Easier to just skip that complexity, I guess.
Also there's one user-level aspect of MKV that makes it not too surprising to me: It can contain any number of video/audio/subtitle streams and the interface needs some way of allowing the user to pick between them. Easier to just skip that complexity, I guess.