Philips External DVD Rewriter : DVD+RW/+R: 2,4x4x8x & CDR/RW: 16x10x40x, 2 MB, 16x, 10x, 40x, Application software: AHEAD Nero Suit 6, Windows 98SE, Windows Me, Windows 2000 Professional, Windows XP Philips External DVD Rewriter : DVD+RW/+R: 2,4x4x8x & CDR/RW: 16x10x40x. Drive device, buffer size: 2 MB. CD write speed: 16x, CD rewrite speed: 10x. CD read speed: 40x. Bundled software: Application software: AHEAD Nero Suit 6. Compatible operating systems: Windows 98SE, Windows Me, Windows 2000 Professional, Windows XP