superchunk on 31 March 2008
Actually I found a good source.
http://vgchartz.com/worldcons.php?date=34029&sort=1
Our shipment tables show that by March 1993 SNES had already shipped 6m+ more units than Genesis did. It is obvious that in less than 3 years SNES already had outsold Genesis, even in the NA market alone.
Genesis was doing well against a much weaker system, NES, but, always lost vs the SNES.
