NEC AD-7170A. CD write speed: 48 x, CD rewrite speed: 32 x, DVD+R write speed: 18 x. CD read speed: 48 x, DVD-RAM read speed: 12 x. DVD drive average random access time: 160 ms, Access time: 140 ms. Drive device, buffer size: 2 MB, Optical drive type: DVD-RW, Interface: EIDE/ATA. Media types supported: DVD-ROM, DVD-R (DL), DVD-RW, DVD-RAM, DVD +R, DVD +RW, DVD +R9, CD-ROM, CD-R, CD-RW 80mm & 120mm di, Write methods: DAO, SAO, TAO zero gap, variable / fixed packet, multisession