Think back, way back to the early 90s. A new storage medium was on the horizon the Compact Disk. The future of technology! The CD would allow the storage of much larger amounts of data (which back then was a premium considering 2.5 inch floppy disks were the standard. Everyone, including videogame companies, were trying to figure out how to use this new technology.

Famously, Nintendo would partner with Sony to develop a CD rom add-on for the Super Nintendo codenamed Playstation. While the add on would never appear, Sony would reuse the concept to launch the PlayStation console and the rest is history.

Yet there are parts of the story we're still missing like what games were developed for the add on, why did Nintendo decide to change their minds and partner with Phillips (for the infamous CDi console) and ultimately what happened behind the scenes of this failed Nintendo add-on.

https://kotaku.com/the-weird-history-of-the-super-nes-cd-rom-nintendos-mo-1828860861