I bought a Dell Dimaension 4550 about a year ago with an NEC DVD+RW ND-1100A. The DVD+RW didn't work properly and DELL was trying to solve that problem at that time. Then I bought another Pioneer DVD-RW DVR-105 and installed it as a slave. The Pioneer worked perfectly. Recently both the NEC and the PIONEER don't recognize my discs ( the same ones as I used before ). I tried formating using EZ CD Creator 5 Basic. No use, except for the first couple of DVD discs. It always says this CD is not writable. Sometimes it pops an I/O problem. I need somebody's help, please.

A bad batch of discs that are closed is possible..try using a utility like ISObuster to see if they already have tracks on them.

Thanks, TouchingVirus. Could you tell me where to get ISObuster? Huaien