If you search around you will see I first started with the Sony discs (Taiwan) they were horrible. I spoke to someone at Sony about the FW bouncing around on the US website and the bad burn with Sony media and they suggested Verbatim instead
I actually have had some pretty good burns with the DVD-R 8x and BY02 FW. Have not retried the BYX2 yet. I got a great discount on this drive and with a $50 rebate is was only about $60 dollars. I am happy to use it for 8x Max and hope they work on the firmware.
I can usually get a pretty good deal on Verbatim at the local Sam's Club at 0.40 each.