HP 8x dvd+r/+rw drive, IDE/ATA, 2 MB, 24x, 10x, 40x, 12x HP 8x dvd+r/+rw drive. Interface: IDE/ATA, Drive device, buffer size: 2 MB. CD write speed: 24x, CD rewrite speed: 10x. CD read speed: 40x, DVD+R read speed: 12x. DVD drive average random access time: 125 ms, CD-ROM drive average random access time: 140 ms. Media types supported: CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DVD-RW, DVD+RW, DVD+R, Compatible operating systems: Microsoft Windows XP Home Edition, Microsoft Windows 2000 / XP Professional, Number of optical discs: 1 discs