I/Omagic External DVD +/- R/RW Drive (24x) (Dual Format/Double Layer) IDVD24DLE USB 2.0 and 1.1 compatible Create DVD movies that are compatible with most home DVD players Watch all your favorite DVD from your computer Includes buffer underrun technology Record up to 8.5GB of data or four hours of video Dual Format - Choose the type of media that best suits your system Double Layer - Double the storage capacity with double layer DVD discs