Universal Adapter (Sega Mega Drive)

The Sega Mega Drive was Sega's first console to offer games which were region locked, i.e. cartridges which can only be played on specific regional hardware. To overcome this problem one solution was to use a Mega Drive Region Converter.From a Sega perspective there are three "main" regions - NTSC-J, the format used for consoles in Japan, NTSC-U, the format used in North America, and PAL, used in Europe and Australia. Other regions would pick one of the three formats - Brazil typically went for NTSC-U and Asia used a mixture of PAL and NTSC depending on the country. There are other forms of region locking too - Japanese cartridges are a different shape than their western counterparts and won't physically fit in some consoles (similar to the "region locking" of the Sega Master System).Traditionally this means a game intended for use with a North American Sega Genesis could not work on a European Sega Mega Drive. There are, in fact, many exceptions to this rule as not all software was region locked on the system, but in many cases there was still an obstruction. Region encoding would generally have a greater impact with the Sega Mega-CD, Sega Saturn and Sega Dreamcast - in the early 1990s few people contemplated the idea of importing games as there were often no easy methods of doing so.