Weird. I've just begun doing this as well. I've been using DVDShrink and Handbrake and going to mpeg-4. I also get rid of all features and additional languages. Quality seems fine to me.

Because of the extremely harsh conditions I'm living in, my DVD's kept getting ruined, despite my efforts to keep them nice, so I decided to go digital so that hopefully can keep my bits from degrading. I've started with all my daughter's Dora DVD's since they seem to disintegrate the fastest.

That's why I've been messing with Boxee in the other thread. Hoping to use that to play them all. (Not thrilled...probably will check out Myth next to see where it's gone in the last couple years since I played with it). For now I'm just using iTunes to index them.