[QUOTE=NewFish;2031390]Here’s scan of the first burn with BenQ1640 in External Enclosure AgeStar model ICB5A (USB2.0+IEEE 1394A) which I received as a replacement of a defective box model IUB5A.
Speed - 12x, time - 6:27, SB - off/on, OS - on, WOPC - on
Burst rate - 20 MB/s
Cannot find out the brand of a chipset.
Trying to perform TRT, I get a communication CRC error, with burn at 16x I get a no additional sense information error.
Please advise me how to improve the performance of the drive. Maybe crossflashing or using IEEE 1394A? Thnx.[/QUOTE]My 1620 manages 16x TRT in my USB2 enlcosure, my 1650 hit’s a barrier at 14x. It sounds like you might max out alittle above 12x, you could try the external 1640 firmware instead of BSLB. Firewire tends to be faster but no guarantees. My Oxford FW enclosure hits a wall at 9x regardless of drive, Plextor enclosure FW hits 16x easy.