If I understand correctly a GC disc only held 1.5GB so storage/download size isn't an issue...
And TruckOSaurus you are right but many more people want to play GC games that don't actually own a GC...
If Nintendo could make this work, with Star Wars Rogue Leader, F-Zero GX, Mario Kart DD, Resident Evil 4, Wave Race Blue Storm and even Super Mario Sunshine they could be on a winner....