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Sega Mega-CD5555555
[[ja:&#12513;&#12460;CD]]
The '''Sega Mega-CD''' or '''Sega Mega-CD''' (in the UK[[North America]]) is an addon device for the [[Sega Genesis]] that will allow the user to both play audio CDs and specially designed game CDs.  It also has [[CD plus G|CD+G]] capabilities. 

The development of the Sega Mega-CD was top secret; game programmers didn't know what they were designing for until the Sega CD was finally revealed at Tokyo Toy Show in Japan.  The Sega Mega-CD was desgned to be in competition with the [[Turbografx-16]], which had a CD module, not the [[Super Nintendo Entertainment System]].  The Sega Mega-CD was first released in Japan in 1991 where it was called the "Mega-CD.".  Initially, it was a great success because of the inherent advantages of CDs (high storage space and low media cost) and the fact that it had a nice RPG base.  

The Sega Mega-CD was first released in the U.S in November 1992 for $299.  Several titles were available at launch including the controvesial Night Trap. A total of 149 games have been released for the Sega CD in the U.S. Game production was mostly discontinued from 1995-1996. The Sega CD floundered in the USA, partly due to the cost. There just was not a great enough value for the price.  Tangibly, game quality was little improved.  The sound was often better if it included a CD audio track, but for the most part, conve(contracted; show full)* 8X internal over-sampling digital filter
Audio:
* Frequency Range: 20Hz - 20 KHz
* Signal-to-Noise Ratio: >900dB @ 1K
* Channel Separation: >900 dB
Output: RCA Pin Jack x2 (L/R)
Dimensions: 301mm x 212.5 x 112.5
Weight: 3.1 lbs