Philips CUP DVD+ -RW 16X4X12 WHITE. CD write speed: 40 x, CD rewrite speed: 24 x. CD read speed: 40 x. Logical recording format: UDF & ISO 9660. Dimensions (WxDxH): 200 x 150 x 40 mm, Weight: 950 g. Minimum processor: Pentium III 500MHz, Compatible operating systems: Windows 98 SE, 2000, ME, XP