Thanks for the answers. Indeed it does work fine!
I flashed to G7P9, now media testing with Nero CD-DVD Speed
- runs at every speed I set (starts slower, ends faster, as usual)
- display PI Failures as well.
I am not sure but it seems the "Quality Testing quality" (I tried 4x and max here) keeps the same no matter the speed, the differences are about 10% at most and do not alter the basic result (Disc Quality). Nice...
I attached two graphs (in one pic), same ISO DVD burned on LG GSA-4163B at 8x speed, tested with 4x and Maximum speed on the BenQ. Orange lines added for "orientation". ItÂ´s amazing!