NEC AD-7170. CD write speed: 48 x, CD rewrite speed: 32 x, DVD+R write speed: 18 x. CD read speed: 48 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. Write methods: DAO, SAO,TAO zero gap,variable / fixed packet, multisession