How do I disable disk checking?

If the disc is scratched, there are programs that can recover data from such discs. In your case, you don't need to recover all the data, but rather some specific files that it's looking for; I don't remember which ones. Recover the data, create an image, and that's it; no problems.
Winner, I have a disc check feature in version 3.1, unfortunately. It might be related to the Bukovskaya version, but it's worth checking.