Problem re-importing corrupt files
 

I have found a few corrupt files and am trying to re-rip them from my original cd+g disks and I get an error message that says (The BookID you have selected is already in use. Please select or type another BookID.).

I want to copy them over the old files and not create an new book. What is the fix for this?

Use the same discid you used for the original. You can find them in the database search if you can't remember.