I'm having the same problem. Stops at about 43% read for me.
I wonder if the studios put a block on the DVD, that screws with the read function and causes aborts.
I'll get to trying a new install, see if that works.
If you get info please pass it on - send me a direct reply, and I'll do the same for you.
I didn't do a whole bunch of ripping
- but it was nice to have when I felt the urge.