I do the same with music cd's in my car, I am one who downloads music but I do actually own over 1000 original cd's, the ones I want in my car I copy, the reason why is if my car gets broken into there is only a few quid of cd-r's to nick rather than £100's worth of real cd's, goes the same for the Wii and any console, why risk the kids damaging the discs when you can just let em play a copy and if it breaks does it matter.