Transcend DVD-Writer - 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 - Slimline

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