I'll chime in once more to address something that seems to be coming up a lot. Commentary tracks take up considerably less space than even a half-bitrate DTS track. Commentaries, particularly on discs of longer films with multiple tracks, are usually encoded in mono or 2.0 stereo at a much...
If you don't like commentaries, they're not for you.
If you're interested in preserving a living record of the creation of a film, and the hows and whys films are made, then you're probably not complaining about too much content.
In a time when DVD is increasingly becoming hijacked by big...