DW1800 - http://www.benq.com/products/Storage/?product=913
Max. DVD writing speed 18x +R, 18x -R
Max. DVD Re-writing speed 8x +RW, 6x - RW
Max. DVD DL writing speed 8x +R, 8x -R
Max. DVD RAM writing speed 12x
Max. CD writing speed 48x
Max. CD Re-writing speed 32x
Max. DVD Reading speed 16x
Max. CD reading speed 48 x Seek time 160ms (DVD) / 160ms (CD)
DW1805 - http://www.benq.com/products/Storage/?product=914
Max. DVD writing speed 18x +R, 18x -R
Max. DVD Re-writing speed 8x +RW, 6x - RW
Max. DVD DL writing speed 8x +R, 8x -R
Max. DVD RAM writing speed 12x
Max. CD writing speed 48x
Max. CD Re-writing speed 32x
Max. DVD Reading speed 16x
Max. CD reading speed 48 x Seek time 160ms (DVD) / 160ms (CD)
At one point I thought these two drives were based on two different chipsets/platforms. I'm guessing they're both based on Lite-On's 18x DVD writer now.