That just means it's an OEM BenQ...crossflash w/ B FW to make it say BenQ.
Go here: http://dvdpro.club.st/firmware/BENQ_FW.htm
DL the WinDWFlasher and CVT file of your choice (EG: B7P9 or B7T9)
Load CVT into flasher and reboot.
Go here: Official BenQ FW
DL Official FW of your choice (B7P9, B7T9, B7U9) and flash your drive.
Note: if you want to use MCSE on your drive, to boost the pressed DL ripping speed to 16x MAX, do this:
Load official BenQ FW (after doing Step #1!!!) into MCSE program (http://ala42.cdfreaks.com/MCSE/)
Then CHECK OFF "increase read speed" checkbox and hit Save. Then flash as normal and reboot.
NOTE: Always flash with your drive EMPTY.