I think think of at least 5 consoles off the top of my head that had CD before the Playstation one. I would say use of soundtracks from real artists and their marketing was more disruptive. Sony made it cool to play video games. They had booths in world famous clubs like ministry of sound.
Remember popular franchises that people associated with the playstation actually started out on other machines i.e - Tomb Raider. Initially the Sega Sturn was outselling the Playstation esp. in Japan. But i digress - But CD gaming is definately not something that should beclaimed "disruptive" in favour of the PSX.
Systems owned
Vectrex, Master System, Nes, Megadrive 1 + 2, Mega CD, Super Nintendo, Jaguar, Saturn, Playstation, N64, Dreamcast, Gamecube, PS2, Xbox, Xbox 360, PS3, WII
Handhelds: Game gear, game boy, Lynx 1, Lynx 2, Gameboy Advance, Neo Geo Pocket Colour, PS Vita, Ds Lite, 3DS,
All the ones in read were/are my favourite.
