If you want to get a DW-1620 from BenQ, there are two ways to do it. The easier way is simply to buy one directly. The other option is to take a DW-1600 and flash it with the latest firmware available. This will add DVD-R and DVD-RW writing capabilities to the DW-1600, which were unavailable when the product was launched. Then all you have to do is flash it again with the latest firmware for the DW-1620, and you're good to go!
To improve its burning qualities, the BenQ uses the WOPC (Walking Optimal Power Calibration) system. WOPC lets the DW-1620 optimize the recording quality throughout the write process by adjusting the power of the laser. To avoid buffer underruns, the DW-1600A uses Seamless Link technology.
- CD: 40xDVD: 16x
- CD-R: 40xCD-RW: 24xDVD-R: 16xDVD+R: 16xDVD-RW: 4xDVD+RW: 4xDVD+R DL: 2.4x
- Buffer: 2 MB
- Firmware: B7K9
The burner's compatibilities and specifications according to DVD Info and Nero Info Tools: