Can't properly rip .vob file

[jikchung]

Trying to rip the 2nd of 2 episodes off the disc (Star Trek TOS Vol. 22, Journey To Babel). Select the NFO, analyzing video takes longer than normal, but not too bad. Two .vob's should be ripped, but the second comes out short about 150 - 200MB, losing the last 5 - 10 minutes of the episode.
Tried vstrip manually and it gets a sync error at the same point, smartripper just stops at that point. DVD decrypter reports a CIRC error.The disc has been played on the PC, but gets an error at that same area. Plays perfectly on my stand alone though. Disc is not unusually scratched.
Any suggestions appreciated, but it's probably not gonna work.
Thanks
Dwight

edit: Using DVD2SVCD 1.1.1b2

[hoozdapimp]

you may have some aspi issues is about all i can think of. see the software section of doom9 to make sure you are up to date.

can you rip other dvd's?

[jikchung]

Yeah, I can rip other DVD's, I already processed the first half of this one with no problem. There's got to be a glitch in this particular file is all. I just thought there might be an application or technique to read it, kind of like Exact Audio Copy and error correction of scratched CD's.
Thanks for the reply.

[flaystus]

jikchung: I've run into this problem before with not only DVD2SVCd but some other DVD rippers also. Seems some dvds just dont like to rip from some drives. Do you have another drive you can try with? Also make sure there is not a firmware update for the one you do have. NOt sure what causes it but its rare, both my RL friends have run into it more often then myself.