I honestly don't know if Sony would even making game systems today if Nintendo had used CD-ROM + cartridge for the N64.
I think the N64 would've spanked the Playstation three ways to Sunday, most of its third party exclusives would've ended up multi-plat on the N64 (RE1/2/3, sports games, Tekken, etc.) and some of them would've been on the N64 only IMO (Final Fantasy VII-IX, Dragon Quest VII).
I think Nintendo would've won that gen, Sony would've bailed on a PS2, and Sega would've fallen apart. Game industry would be completely different today. I think probably Microsoft would've entered the business and tried to compete against Nintendo but probably failed as well.







