What's the problem? If it's showing "Cyclic Redundancy Error" (like it has for me a few times), then it's some weird copy-protection shit that they have put onto the DVD. This doesn't just affect DVD Shrink, I doubt you'd be able to copy it at all.
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If I'm gonna jump off the cliff, and you're gonna get pushed off the cliff,
why don't we hold hands on the way down?