Yes I know that. I have a Memorex DVD-RW disk in. I use them all the time on my other system which has a much lower quality writter in it. As I said,,, it WAS working fine at 1 point & somewhere along the way something went a stray.
P.S. I also hooked this drive up to my other system just to see if it was the drive itself, but it worked just fine on that system so it's not drive.