RASTABT
1
According to Sony, the two drives can write at a speed of 2.4x in the double-layer format. In addition, they process conventional DVD+Rs at eight times the speed and DVD+RWs at four times the speed. As Dual-RW drives, they can also handle DVD-R media with 8x and DVD-RW with 4x. CD-R/RW can be used with fast rates of 40x or 24x, CD-ROMs are played with 40x speed and DVD-ROMs with 12x speed.
Source:tomshardware.
Now why don't the Liteon's version look this good