It wasn't the Panasonic 3DO, it was the 3DO Interactive Multiplayer. 3DO was the company that owned and ran the 3DO project, Panasonic was one of three manufacturers they found to build their product (the others being Sanyo and GoldStar). 3DO sought to create a standard, and in order to enforce that standard, they licensed their hardware schematics out to multiple manufacturers
Monster Hunter: pissing me off since 2010.