erasing disc info and reimporting it again

[Doug Bracey]

I would like a step by step instruction on how to delete a disc with bad graphics and reimport that disc again so it would show up better.
I've looked through the manual but it doesn't guide you through it step by step so i won't mess anything else up. also some of my disc numbers show wrong book id numbers for songs ( in other words when you punch in one book id number for a song another song actually shows up in its place.

Thanks Doug Bracey