copy all files to HD, when it fails due to CCR i use another DVD-rom player and retry from the last faulty file.
Sometimes i have to use all 4 of my DVD-rom player (which are different brands) but almost every time this works for me (i even took a faulty DVD once to work and copied the last segment over there without errors.
So try to use as many different DVD-rom player as possible, it works for me!
WKR,
Marco