Editing Sega Mega Drive (section)

==Add-ons==
{{Main|Sega CD|Sega 32X}}
[[File:Sega-Mega-Drive-Tower-Mini.png|thumb|225px|left|Mega Drive with the [[Sega CD]] and [[Sega 32X|32X]] add-ons as well as ''[[Sonic the Hedgehog (1991)|Sonic the Hedgehog]]'' locked on a ''[[Sonic & Knuckles]]'' cartridge (Japanese version).]]
The Sega Mega Drive features two optional add-ons: the '''Sega CD''' and '''Sega 32X'''. Both of these peripherals helped to expand the Mega Drive's lifespan into the next-generation of consoles (32-bit era).
*The '''Sega CD''' plays a high-quality CD-ROM using a slow 1x Optical Disc Drive while increasing audio and visual capabilities over the stock Mega Drive. This add-on was first launched in Japan on December 12 1991,<ref>{{cite web|title=Mega-CD|publisher=[[Sega]]|language=Japanese|url=http://sega.jp/fb/segahard/mcd/ |archiveurl=https://web.archive.org/web/20140716110215/http://sega.jp/fb/segahard/mcd/|archivedate=16 July 2014|accessdate=29 March 2014|}}</ref> with a North American launch on October 15 of the following year.<ref>{{Cite web|last=Beuscher|first=David|title=Sega CD: Biography|url=http://www.allgame.com/platform.php?id=36|publisher=AllGame|archiveurl=https://web.archive.org/web/20141114094429/http://www.allgame.com/platform.php?id=36|archivedate=14 November 2014}}</ref> The Sega CD is best known for the exclusive debut of ''[[Sonic the Hedgehog CD]]''.
*The '''Sega 32X''' works as an "enhancement" over a stock Mega Drive console, with an additional 32-bit processor to process more complex graphical tasks. The 32X was released in North America on November 12 1994,<ref name="ulthistory">{{Cite book|last=Kent|first=Steven L.|year=2001|chapter=The "Next" Generation (Part 1)|title=The Ultimate History of Video Games: The Story Behind the Craze that Touched our Lives and Changed the World|publisher=Prima Publishing|isbn=0-7615-3643-4}}</ref> just a day before the [[Sega Saturn]] was launched in Japan. This peripheral is best known for being the exclusive platform of ''[[Knuckles' Chaotix]]''. However, it was unsuccessful.