Ok...so I have these Princo 1x DVD-RW discs that work perfectly in my DRU-500A

but I also have these Princo 1x DVD-R discs that always come up with a SCSI/IDE error inside Nero.

does anyone have a solution to this problem?

I have the newest Firmware from Sony v1.0f

I can't seem to figure out why these discs won't both work...is the RW media better in some way?

any help you can give would be greatly appreciated