LG GSA-H42N-R DVD+/-RW 18xDL10x12xRAM, Tray, Vertical/Horizontal, 2 MB, 48x, 18x, 32x LG GSA-H42N-R DVD+/-RW 18xDL10x12xRAM. Disc loading type: Tray, Mounting: Vertical/Horizontal. Drive device, buffer size: 2 MB. CD write speed: 48x, DVD+R write speed: 18x, CD rewrite speed: 32x. CD read speed: 48x, CD-R read speed: 48x, CD-RW read speed: 40x. DVD drive average random access time: 140 ms, CD-ROM drive average random access time: 120 ms