Sega CD

The Sega CD, also called the Mega-CD^[a] in most places outside of North America, was a CD-based console add-on for the Sega Genesis. It was made by Sega. It was released in December 12, 1991 in Japan, October 15, 1992 in North America, and April 2, 1993 in Europe. It was 16-bit and Sega's first product in CD market. It was somewhat successful, but was criticized for the lack of quality games.

Sega CD / Mega-CD

Top: Original Sega CD (bottom) attached to a Model 1 Genesis. Bottom: Model 2 Sega CD (on right) attached to a Model 2 Genesis. Other variations are pictured under Variations below
Also known as	Mega-CD (most regions outside North America and Brazil)
Manufacturer	Sega
Type	Video game console add-on
Generation	Fourth generation
Release date	JP: December 12, 1991 NA: October 15, 1992 UK: April 2, 1993 EU: 1993
Lifespan	1991-1996
Introductory price	JP¥49,800 US$299 GB£270
Discontinued	1996
Units sold	2.24 million
Media	CD-ROM, CD+G
CPU	Motorola 68000 @ 12.5 MHz
Storage	64 kbit internal RAM
Sound	Ricoh RF5C164
Best-selling game	Sonic CD, 1.5 million[1][2]
Related articles	32X

Notes

1. Japanese: メガCD (シーディー), Hepburn: Mega Shī Dī^?