This program is great for recovering files from scratched CD's or defective floppy/hard disks. Normally when your computer is unable to copy a file from a damaged disk it will abort and delete the portition of the file it has copied. This program however will continue to copy the file right to the end. Any data that is not recoverable after many retries is replaced with blanks. This will allow you to truely recover every byte of information that is available for recovery.