I managed to get this media to burn @ 16X!
I just used a hacked firmware from
http://www.micheldeboer.nl/firmware/
That page has a whole bunch of modded firmware, I used:
LD3520 1.U6 (Beta 6) (Liggy & Dee NEC ND-3520A firmware)
http://www.micheldeboer.nl/firmware/LD3520_1U6.zip
I tested it with the new 16x limit and it works like a charm!
At 4x I burned a disk with a few video files that added up to 4.2gigs, took about 18 minutes , I burned the same disk over again with the new hacked firmware and it was 6 minutes even
I played some of the videos and none of them had any trouble loading, everything is perfect, I am very happy.