This post was published more than a few years ago (on 2004-06-06) and may contain inaccurate technical information, outmoded thoughts, or cringe takes. Proceed at your own risk.
A great article the Evil Schmoo shared with me a few weeks ago, comparing different MPEG-2 encoders. I've been using BitVice, which came up #3 in the ranking, but I may have to get a PC and check into the winner, Cinema Craft Encoder, if I start getting more DVD work. It looks like it's the shit.