You are bidding on the Nintendo Gamecube CD-Rom PC Preview Demo Disk. The condition of the item is new/sealed and unopened. The item card is curved/warped from being in storage but it does not affect the disc inside.
This promotional item was released in 2001 for the then upcoming Nintendo Gamecube System. It is playable/watchedable on the PC. The case was designed to look like a Nintendo Gamecube. Please note the demo disc is for PC (not the Gamecube).