LG GH22LS70. CD write speed: 48 x, CD rewrite speed: 32 x, DVD+R write speed: 22 x. CD read speed: 48 x, DVD+R read speed: 16 x, DVD-R read speed: 16 x. DVD drive average random access time: 220 ms, CD-ROM drive average random access time: 125 ms. Disc loading type: Tray, Drive device, buffer size: 2 MB, Optical drive type: DVD±RW. Optical disk diameter: 120 mm