MacTheRipper then encoded with Handbrake.
Just used Constant Quality set to about 75%.
Outputted to MKV with MP3 as audio and Xvid as video.
I hit a few dummy vobs, I just chose "Pad" in MacTheRipper and... no problems.
Just for the hell of it I played them side by side, they stayed in sync for almost 15 minutes. At that point one of them probably should have drifted noticeably, although I was just eyeballing it.