A number of Lego Lord of the Rings discs for Xbox 360 are being recalled due to a packaging error. It seems the discs are labeled as demo discs but actually contain the full game. The official statement from Warner Bros. Interactive is the following:
That’s nice of them. So if you’re on the market for Lego Lord of the Rings on Xbox 360 and you see a disc labeled “demo,” you don’t have to worry, it’s actually the full game. You can either put it back and pick up another one, or just buy it and enjoy it. Or if you already did buy it you can contact the publisher for a replacement. Either way it doesn’t really matter.
Article from Gamersyndrome.com