LG GH22NP21, Tray, Horizontal, IDE/ATA, 2 MB, 22.16 MB/s, 48x LG GH22NP21. Disc loading type: Tray, Mounting: Horizontal. Interface: IDE/ATA, Drive device, buffer size: 2 MB, DVD-ROM transfer rate (sustained mode): 22.16 MB/s. CD write speed: 48x, DVD+R write speed: 22x, CD rewrite speed: 32x. CD read speed: 48x, CD-R read speed: 48x, CD-RW read speed: 10x. DVD drive average random access time: 140 ms, CD-ROM drive average random access time: 120 ms