I want to know how to test the quality of burnt discs. I was told that software exists for Lite-ON drives that can tell the PI errors, and thus the quality of the burn. I am no conaisseur, but would love some software that could meake these tests for me. I make backups of movies and data, so I wish to verify the quality of the burn after the discs are burnt. Regards, steve7777 EDIT: I tried Nero CD-DVD speed,under disk quality, but it gives me an error "failed to initialize test"