I have a (KHypermedia-rebadged) internal BenQ DW822A burner that has been installed in a USB case, and loaded with the external BenQ EW822U burner firmware (latest version 7.HS). It works beautiful as an external USB DVD+-RW burner connected to my laptop.
Now, BenQ has released a firmware upgrade for the internal DW822A burner that supports DVD+R DL. The person from which I purchased this burner told me that I can flash my burner to support DVD+R DL. He instructed me to get this WinDWFlash.exe application and B3LC.cvt file from "Unofficial BenQ DVD ReWriter Firmware Page" http://dvdpro.club.st/firmware/BENQ_FW.htm.
It didn't work. I got the pop-up "flashing fail" and the following error message within 3 seconds:
"Linear Check Sum = DC06
Rotated Check Sum = DE9A
Check Sum match !!
Don't turn off the power!!
======== FAIL 1========"
Do you know what went wrong? I had shut down everything else on the computer while runnning WinDWFlash. The USB connnection was also direct (not via a hub).
How do I go about doing this properly? Or perhaps it is not possible at all? Hmm....
I would like to get DVD+R DL writing on this burner, but I don't want to unwittingly flash and kill what is otherwise a wonderful burner. Many thanks in advance.