Are you using discs that your drive supports?
Have you tried checking for firmware updates for the drive?
As it appears to only be a DVD+ (plus) format burner, now might be a good time to buy yourself a decent up-to-date drive. That thing you're running must be a good few years old now.
Yepp, I've had it for quite awhile now. I'll try with a batch of new discs.
One thing though, are there anything i should think aboutwhen updating firmeware? I've heard you can toast the drive if u mess up.