This article is from the CD-Recordable FAQ, by Andy McFadden (firstname.lastname@example.org) with numerous contributions by others.
Some diagnostic and recovery software is available:
- CD-R Diagnostic (6-2-6)
- IsoBuster (6-2-20)
- CD Data Rescue (6-2-22)
- BadCopy Pro (6-2-23)
- CDRoller (6-2-24)
If these can't help you, there are data recovery companies that might be
able to. Some examples:
- CD Recovery Services, http://www.cdrecovery.com/.
- Acodisc CD Data Recovery, http://www.acodisc.com/.
- CD Data Guys, http://www.cddataguys.com/.