Pioneer - DVD RW - internal - 5.25" - IDE. CD write speed: 16 x, CD rewrite speed: 10 x. CD read speed: 32 x. DVD drive average random access time: 140 ms, Access time: 130 ms. Drive device, buffer size: 2 MB, Logical recording format: Disk-at-once, packet writing, Interface: ATAPI (PIO Mode4)/Multi Word DMA Mode2) Ultra DMA33 (Ultra DMA Mode2). Media types supported: CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DVD-RW, DVD+RW, DVD+R