NEC ND-4571 DVD RW Ivory. CD write speed: 48 x, CD rewrite speed: 32 x, DVD+R write speed: 16 x. CD read speed: 48 x, DVD+R read speed: 16 x, DVD-R read speed: 16 x. Access time: 140 ms. Drive device, buffer size: 2 MB, Optical drive type: DVD-RW, Interface: IDE (ATAPI). Media types supported: DVD-ROM,DVD-R,DVD+R, DVD+RW,CD-ROM, CD-R, CD-RW, Write methods: DAO, SAO,TAO + zero gap, variable / fixed packet, multisession