Sega CD
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The Sega CD, known as Mega-CD in most regions outside North America and Brazil, is a CD-ROM accessory for the Sega Genesis produced by Sega as part of the fourth generation of video game consoles. It was released on December 12, 1991, in Japan,... Wikipedia
Best-selling game: Sonic CD, 1.5 million
CPU: Motorola 68000 @ 12.5 MHz
Discontinued: January 1, 1996
Generation: Fourth
Graphics: custom ASIC
Introductory price: JP¥49,800; US$299; £270
Lifespan: 1991–1996