[flaud]

Thanks for replying Bryan. I don't think it's the Plextor or the mainboard as Nero was working before installing Microstudio.
I think there is a software problem.
I've had other burning programs (Direct CD and Cavs Encoder) running on the same machine with Nero and this is the first time I've run into this.
I don't think the programs are removing all files on uninstall.
Maybe I'll try replacing the aspi files and see if that does anything.

Bill