LG Electronics Internal Optical Drive GT40N Drive Type: Internal Slim DVD+/-RW Dual Layer Drive for Notebooks Write:DVD+R/-R: 8X DVD+R/-R DL: 6X DVD+RW/-RW: 8X/6X DVD-RAM: 5X CD-R: 24X CD-RW: 24X Read:DVD+R/-R: 8X DVD+RW/-RW: 8X DVD-ROM: 8X DVD+R/-R DL: 8X DVD-RAM: 5X Interface: SATA Buffer Memory: 1 MB Data Transfer Rate: DVD-ROM - 11.08 MB/s; CD-ROM - 3600 KB/s