the second post in this thread discribes it best. xbox can do nes and snes better than n64 simply becuase the original hardware was less complex. the xbox hardware has less work to do in emulating the system and therefore can allocate more system recources to running the actual rom. on n64 alot of your initial system resources are going to the emulator (becuase its more complex) so less "power" can be feed to the rom. you have to remember that the xbox was designed to play xbox games not nes, snes, n64 etc. when you put an emulater on the system and then play a rom your making your hardware (xbox) run software (emulator) to make it think its another type of hardware(nes, snes, n64, etc) in order to run more software (games). not chastising you, just explaining. mainly we should all just be happy that the developers have put as much time in as they have. developers, you guys rock!!!