I had this problem when I tried to rip and burn the DVD directly with Shrink. What I found out I could do is first rip it with DVD Decrypter and then load the files into Shrink. Once Shrink is done doing its thing, I bring up Nero and burn. It takes a little longer but I get a good copy everytime. I could be the latest version that I am having problems with or it could be my media.
You can try doing it like this if you are not already. I would also suggest buying media on the internet instead of local stores, it is ALOT cheaper. You can find good media for around $1 and less, depending on how much you buy.
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