Nintendo teamed up with Sony to develop a CD-ROM add-on to the SNES in the early ’90s. The add-on never came to fruition and Sony eventually ended up releasing the PlayStation, which used the then-new CD-ROM technology. Little was known about the details behind the SNES CD-ROM add-on, until now. Steve Lin recently posted images of Nintendo’s internal documents on his Twitter which showcase the details of what the add-on was supposed to be like. The documents illustrate various details, including how the add-on would have worked with the SNES, and its technical specifications. Hit the jump to see some of the documents!
If you are interested in reading through all of the documents, you can find a well-organized list of all the documents on Nintendo Everything.














