Asus DRW-24B1ST DVD-Writer - OEM Pack - Black - 48x CD Read/48x CD Write/32x CD Rewrite - 16x DVD Read/24x DVD Write/8x DVD Rewrite - Double-layer Media Supported - 5.25in - 1/2H

Simply plug this dvd-writer drive and you will begin to enjoy watching movies, writing requisite forms of multimedia content to the discs, and much more Double-layer media supported; means that you will burn 2 different layers on the disc thus greatly increasing (literally doubling) the storage capability