Robb - Thanks for the help i've been able to use DVDShrink to rip the video track I wanted, as you say it's in a .vob file so if nothing else I can reburn it onto a dvd as a separate vid. I have tried a couple of vob-avi converters but so far it's not looking good, quality isn't so great and the sound is lost. I'll keep trying, I may have some settings wrong.
Will - thanks for the info but i've tried DVD Decrypter and it seems to rip whole sections of the dvd not just single chapters, so dvdshrink seems to work better for me.
DanandJackie - I use Sudio9 already but as far as i'm aware you cannot capture a file from a dvd, only a DV device. If i'm wrong and you know of a way to do this please let me know as it would be the perfect solution.
It's looking like the best way to re-edit the vid is to capture all the tapes again and start from scratch, not really what i want to do, but will end up with the best result
Thanks again for your help
cheers
Rich