LG GGC-H20L. CD write speed: 40 x, CD rewrite speed: 24 x, DVD+R write speed: 16 x. CD read speed: 40 x, DVD+R read speed: 16 x, DVD-R read speed: 16 x. DVD drive average random access time: 160 ms, CD-ROM drive average random access time: 150 ms, BD-ROM average random access time: 180 ms. Disc loading type: Tray, Drive device, buffer size: 4 MB, Interface: Serial ATA. Media types supported: BD-ROM SL, BD-ROM DL, BD-RE SL, BD-RE DL, BD-R SL, BD-R DL, HD DVD-ROM SL, HD DVD-ROM DL