Source From BenQ
http://www.benq.com/wm/front/benqmain.asp?...ootId=undefined
BenQ DW1640 Specifications
Performance
[DVD+R DL]
Data Transfer Rate /double layer write: 88.64 Mbit/sec (8X)
[DVD+R/+RW]
Data Transfer Rate /write: 177.28 Mbit/sec (16X)
Data Transfer Rate /rewrite: 88.64 Mbit/sec (8X)
[DVD-R/-RW]
Data Transfer Rate /write: 177.28 Mbit/sec (16X)
Data Transfer Rate /rewrite: 66.48 Mbit/sec (6X)
[DVDROM]
Data Transfer Rate /read: 177.28 Mbit/sec (16X, Max.)Access time: 120 ms
[CD]
Data Transfer Rate /write: 7200 KByte/sec (48X)
Data Transfer Rate /rewrite: 4800 KByte/sec (32X)
Data Transfer Rate /read: 7200 KByte/sec (48X, Max.)
Access time: 120 ms
Supported IDE mode
PIO mode 0/1/2/3/4
DMA mode 0/1/2
UDMA mode 0/1/2
Physical Characteristics
Dimension: 146 X 42 X 178 mm (W x H x D)
Weight: 820 g