What is the difference between DVD-ROM and DVD-RAM?
DVD-ROM uses CD-like disks while DVD-RAM uses an optical cartridge (which it can sometimes be removed from). Most DVD-RAM drives will read DVD disks, but DVD-ROM drives usually won’t read DVD-RAM disks. There isn’t a set standard for DVD-RAM (capacity and compatibility vary by manufacturer), so make sure you evaluate the options thoroughly before deciding to get a DVD-RAM drive.