After the prototype PlayStation: six more obscure games consoles

A late-1980s SNES-CD console ditched by Sony and Nintendo was discovered last month. Here are six other elusive games machines for look out for "

For gamers, it was like discovering the Ark of the Covenant - but made of plastic and less likely to contain the power of God. In early July, one Dan Diebold posted a YouTube video showing an apparently functional prototype of the SNES CD, an aborted update of the famed Super Nintendo Entertainment System built in partnership between Nintendo and Sony.

Developed in the late 1980s, the machine was intended to run games on both cartridges and CD-rom discs, but then Nintendo and Sony fell out and things went wrong. Sony proudly showed off its console - now called the Play Station - at the 1991 Consumer Electronics Show, but Nintendo switched its allegiance to Philips a day later. Enraged, Sony decided to release a new PlayStation console on its own, and many of the SNES-CD prototype units were destroyed. Which is why this new footage has caused much excitement in the gaming community.