I have an Acer/BenQ 1208A (12x maximum write) with 9.CC firmware
The following media have been serving me successfully:
Kodak Ultima Silver/Gold ....... 12x (no surprises there, but they're discontinued
The following media have been causing problems:
Verbatim Super-Azo ....... 8x FAILS !!! (many errors per disc)
Verbatim Super-Azo ....... 12x Much better results, surprisingly, although still "borderline"? (encountered 1 or 2 recoverable errors, but that could be because i have a dusty DVD drive which i did the error check in).
So, slower is not always better. I think these Verbatims are manufactured for longevity from higher burn speeds??