I just ripped An Inspector Calls, which had two movie playlists. They had one audio track each; one was the movie and one was the commentary.
I've put in Murder on the Orient Express, and it's got four movie playlists. I thought it was doing the same thing—there's a mono mix, a 5.1 mix, French and German mixes, and a commentary—but there are the wrong number of playlists for that. They each only have one segment, and they're all the same segment. Two appear to be just the movie audio, one appears to be just the commentary audio, and one appears to have everything.
Anyone know what's going on here?