MPEG-2 is ancient. It needs huge bitrates (and thus filesizes) to look anything decent, and still most DVD's I have are drowning in a sea of artifacts. Not only that, the whole telecine process is pretty much obsolete, as most playback systems can smoothly represent whatever framerate you feed them nowadays. One hears terrible things of NTSC judder and has witnessed the agony of PAL speedup oneself. And to add to the filesize is the fact that even with support for anamorphics DVD's feel the need to have hardcoded black bars.