My BenQ 1640 (Firmware BSOB) can’t burn over 4X speed, no matter what blank I use.
I tried CMC,TYG,Ritek,Daxoz,Prodisc and many other brand with NO success.
I CAN choose 8X (and 6X) in nero writing properties but when it actually write the disc, speed isn’t go beyond 3.9X (I edit my Reg to have nero show real writing speed).
And it’s takes ~15Min to fill 4.33 Gb data (which is 4X speed).
Here is my drive information.
UDMA has already enabled for my Optical drive and HDD.
Any help would be appreciated.
P.s. Even it keep burning at 4X speed, quality score of all my discs are normal, only problem that I found is burning speed.