The Mega-CD is an add-on device for the Mega Drive video game console, designed and produced by Sega and released in Japan, Europe, Australia, New Zealand, and South Africa. The device was also released in North America under the name Sega CD, for the Sega Genesis. The device adds a CD-ROM drive to the console, allowing the user to play CD-based games and providing additional hardware functionality. It can also play audio CDs and CD+G discs.