I have a home authored DVD that has about 10 chapters of different movie segments. Some of the middle chapters are located in what appear to be bad sectors on the DVD. I can copy three of the five VOB files; one will not copy at all; but one will play to about 90% of its length and then I get a cyclic redundancy check error.

-What I would like to do is copy the 90% that is good on that VOB. How can I do that?
-I cannot do capture because the DVD does not seem to be a capture vehicle.
-If I use one of the DVD copy programs- DVD shrink, I also get the same redundancy error.
-HOW Can I copy the good parts of this VOB?

Thank you.