I've only had one disk that it wasn't able to help me with. It was a Maxell CD-RW and a number of years old. It was able to tell me that the CD contained a 384MB track, however it said there were no files in the track. I later used
Some situations where BadCopy Pro can help
Damaged floppy disk repair and floppy data recovery
Damaged or defective CD-ROM, CD-R, CD-RW data recovery
Recover inaccessible data on floppy disk or CD discs
Rescue lost files from floppy disk or CD-R, CD-RW
CD-R burning problems and data loss recovery
Corrupted, unopenable or unreadable files recovery
Retrieve data from all sessions on multi-session CDs
Lost photos recovery for storages used in digital cameras
Floppy disk deleted file or quick formatted disk recovery
UDF and packet-writing disc. Supports DirectCD and InCD.
Iomega ZIP disk, JAZ or MO Disk files and data recovery.
Risk-free: BadCopy is safe, no write action on your original disks, that finally saves the recovered data to a new folder you specify.