What's this about?

Link: Super Mario's Wacky Worlds PC on eBay

I'm fairly familiar with this CD-I game's legend. And I followed the DP topics about the game, so I'm obviously super-interested in this holy grail. But tonight I came across this eBay auction. What's the deal? Did someone make a neat little emulator/game package that works on a PC? And how did I miss the leak of the CD-I disc image?