Criterion owns the rights to the audio commentaries that they recorded for films which they no longer own. I believe they mentioned they may one day look into publishing some of them in a book. However, would it also be possible (from a legal standpoint) for them to release these tracks on CDs which could be played simultaneously to DVDs? I imagine that a lot of people have CD players in their home theaters as well, so aside from having to switch CDs halfway through a movie, this would seem like a feasable idea to me. I also think there is a big enough market for these CDs, or a box set of 'lost audio commentaries' but of course Criterion hasn't done this yet, so there must be a reason. Does anyone know more about this, before I waste asking Criterion the same thing in October?