So digging around some old boxes last night I found 12 CDR-s from one of my old bands studio sessions we recorded in 2003. These discs have some surface damage, but no major gouges or anything like that. I was getting some CRC errors in trying to copying the files to my HD, but found a program CDCheck that has helped in recovering most of the files. However, I have one disc that just refuses to work - which I assume just means it's too scratched. 
Anyone have any tips on cdr repair/resurfacing or anything like that?

Anyone have any tips on cdr repair/resurfacing or anything like that?