I just got my computer a few weeks ago and I have been trying to burn some old basketball games to disc. The very first time I tried it, it worked perfectly for me. I just tried doing it again tonite and on 3 different occasions, I kept getting an error message when it tries to write to disc. The error message says this: DVD err (DVDErr, 721100). My DVD burner is a 16x and I am using 8x Memorex DVD+R discs. I started off trying to burn them at 8x, but twice I had the same problem. So I decided to try once again, but this time I used 4x. I got the same message. I even downloaded the latest firmware for this drive and that didn't help any. The drive is a Philips DVD+/-RW DVD8631. I wonder if I got a bad batch of discs? It just seems funny that the first one worked perfect, but none have since. Maybe the drive is bad.