In this post I would like to share my experience about a BenQ 1620 OEM drive installed in an external USB 2.0 enclosure, chipset ALI M5621-A1.
I like only real tests, so I decided to check the writing speed in a real working situation.
The drive originally came with a G7L9 firmware and I could burn data DVD+Râ€™s only at 4x even the allowed speed was 8x.
The next step was an update to G7T9 with the same results on DVD+Râ€™s: SmartBuy 8x (PRODISC R03) and FujiFilm 8x (YUDEN000T02) media.
After that, I crossflashed to B7P9 and â€œQSuite 1.0â€ said that the drive is not supported, so I updated to B7V9 and everything has changed. QSuite 1.0 recognized the drive and I was finally able to write the DVD+R at 8x on the FujiFilm media but at 4x again on the SmartBuy media.
Surprisingly, the crossflashing to 47L9 (BenQ EW162I) and the update to 47N9 didnâ€™t get better, even worse. The writing speed for both media dropped to 4x. I was thinking that this firmware is specially designed not only to upgrade the BenQ drive, but also to make some changes to the ALI chipset, which is the same in the original BenQ EW162I like mine.
Finally, I crossflashed back to B7P9 and upgraded to B7V9. I even tried to make a 12x burn on the FujiFilm media, because Nero 184.108.40.206 tells me that the max possible speed is 16x, but it failed. Maybe my transfer is not enough to support the 12x burn. Another interesting thing was that even I booktyped to the appropriate media with â€œBookType Management v8.4â€ in the OEM- G7xx versions, Nero said: Book Type automatically set to: DVD-ROM, while in the PRO (G7xx) and EW162I (47xx) Nero said: Book Type automatically set to: Current recorder settings.
In conclusion, I spent one day and wasted around 10 DVDâ€™s to accomplish my experiment. Iâ€™m happy that I reached the maximum of my current configuration which is as followed: Compaq Armada M300, P-600, 320 MB, Fujitsu MHT2040AH-4200 rpm, BusLink USB 2.0 PCMCIA Card.
If you have similar or better results, I am ready for further experiments :)))