Odd problem: I have been burning many DVDs for backup of my 120 gig,and toast took a bad crash. Rebooted and now all I burn in Toast, and Diskcopy are dead disks. It goes through the motions, but upon verification it failes. The odd thing is, the disks, are still blank and useable by another machine. So, the question is whether the Superdrive itself is DOA or if its a software thing and I must replace some files, plists, or prefs. I have run your basic battery of disk utilities and repaired permissions, etc. Ican make disk images with toast and disk utility and save to disk, but I cannot burn them. Any thoughts? Its a Quicksilver dual 1 gig, Original Superdirve (2X I believe). Of course, this may be the excuse Inweed to go get a 88.00 A107 from Frys and have 8X burning. OK, reinstalled Toast, ran utilities and not working still. Get this error: Sense Keys Illegal; Request Sense Code = 0x72, 0x03 Session Fixation Error Incomplete track in session Then toast says Lean out failed to be written. These are all images that cab be burned just fine on my other machine.