LG GH24NS70. 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: 145 ms, CD-ROM drive average random access time: 125 ms. Drive device, buffer size: 2 MB, Interface: Serial ATA, Read speed: 22.16 MB/s. Media types supported: CD-R/RW, DVD-R/RW/RAM/ +R/RW +/-R DL