Yamaha drives are media picky.
The CRW3200 even more so than the CRW2200.
I was using Maxcel 16x media in the CRW3200 and it burned at 24x.
I try others like Princo 24x and it burns at 16x.
On the CRW2200 the Princo burns at 20x.
The more I figure out, the more I realize how little I know.