LaCie Portable DVD±RW with LightScribe, Design by Sam Hecht. CD write speed: 20 x, CD rewrite speed: 24 x, DVD-R Double Layer write speed: 4 x. CD read speed: 24 x, DVD-R Dual Layer read speed: 4 x, DVD+R Double Layer read speed: 4 x. Interface: USB. Dimensions (WxDxH): 157.5 x 137 x 25 mm, Weight: 319 g. Minimum RAM: 256 MB, Minimum processor: Pentium IV, Compatible operating systems: Windows 2000 Windows XP Windows Vista Linux