If the Wii can play Wii ISO games on an external hard drive, why can't it play Arcade, 32X, N64, Saturn, PS1, Dreamcast, PS2, Gamecube, PS3, etc. games flawlessly? I'm able to play SSBB without a disc, but not Knuckles Chaotix, Megaman 64, Crash Bandicoot, Sonic Shuffle, Marvel vs Capcom 2, or Panzer Dragoon?