External DVD Drive for Laptop, TSV USB 3.0 CD/DVD +/-RW Optical Drive, Portable Slim CD ROM DVD Burner Reader Writer for PC Compatible with Mac OS, Windows, Vista, Linux, HP, Dell, Asus,
DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-RAM, DVD DL Dual Layer, 8cm DVD optiques media discs
DVD-R VS DVD+R: Difference between DVD-R and DVD+R