All it takes is a bit of dirt orientated the wrong way and it throws the laser.
Even a partial fingerprint can do it if it happens to be in the wrong place.
If it's a bad pressing it can look perfect as the flaw is within the disc.
I've also had a brand new DVD taken straight out of the box that wouldn't rip no matter how many times I tried it and I couldn't see any dirt on it even reflecting the disc in the light.
I cleaned it and it ripped perfectly.
Anyway, see how you get on with 22.214.171.124. and if you still have any problems post the log and I'll have a look at it for you.