[jdawson]

dvd decrypter, up top there is the option of modes. (IFO, ISO, file)

choose ISO to rip it and you should be able to use decrypter to read and write it.

I'm not sure it will work though, whenever I have that cyclic redundancy error, I usually cannot copy the full file to the pc. If possible, contact whoever sent it to you and see if you can get a new one. I think if it was possible to copy that cd check would have done it (did you try the recover button?)