I had this problem before and the only thing i could do about it was reinstal my O/S. Well here it is. Nero was burning fine. One day I started burning (NEC 2500A) and only got to 2% and the thing quit. I tried new ASPI and reloading the softwear. Nadda! So I started using Disk Juggler. Worked fine for about 100 disks. Now same thing. It gets to 2% and quits. I've tried other free software and same thing. new ASPI from Nero and from Adaptec. Nothing works. I can't even eject the disk until I turn the burner off. I really wish somebody with the same problem would help me out. I've had lots of people guess what the problem (and I thank them for their help) but I still don't have a solution. Anybody? Anybody? Please help.