Dvd-Rw lite-on ds-8a5sh. Readable format: dvd-rom, dvd-r, dvd-r dl, dvd-ram, dvd-rw, dvd + r, dvd + r dl, dvd + rw, vcd, cd-rom, cd-r, cd-rw. Read speed: dvd-rom max 8x, cd-rom max 24x. Dimension: 128x129x12.7mm( w x d x h). Height: 12, 7mm. Interface: sata. Buffer memory 2mb.