C-DVD

C-DVD (short for Cartridge DVD and originally named the Cartridge Disc System) is a magneto-optical disc-based format for storing data and playback of high-definition video. Invented by former NASA engineer W. Rochester Akkerman and supported principally by and, C-DVD, which is similar to , was originally offered as a less-expensive alternative to the standard DVD.

The first pre-recorded C-DVD cartridge discs came out in 2003 followed by the first recordabale C-DVD cartridge discs shortly afterward.