For what it's worth, I've flashed mine with A103 as soon as I got it. I've done 41 burns so far and scanned every one if them in a BenQ drive. I have yet to see one that I would call less than good (in most cases, excellent to spectacular) on the following media codes I've used:
CMCMAGAE1, CMCMAGE01, FUJIFILM03, MAXELL002, MCC004, MXLRG03, ProdiscF01, PRODISCR03, TYG02, YUDEN000T02.
(The only questionable burn so far was one MAXELL002 that switched to a lower speed in the middle.)