Asus SDRW-08U7M-U DVD-Writer - Black - DVD-RAM/±R/±RW Support - 24x CD Read/24x CD Write/24x CD Rewrite - 8x DVD Read/8x DVD Write/8x DVD Rewrite - Double-layer Media Supported - USB 2.0

Copy your most favorite movies and music to the disc with this DVD-Writer Double-layer media supported; means that you will burn 2 different layers on the disc thus greatly increasing (literally doubling) the storage capability