It's tempting to ponder what actually would have occurred if the SNES PlayStation had actually hit the market, and the deal went ahead as Sony had clearly hoped it would. It's worth taking into account how its rivals fared at the time. The NEC-made PC Engine CD-ROM attachment was the first to hit the market in 1988, and would be fused with the core machine in the form of the PC Engine Duo in 1991 - known as the TurboDuo in North America. It added little to the gaming experience aside from animated introductions and CD-quality audio, and although it had moderate success in its native Japan, it was a complete failure Stateside.