One question , if You are able to take all the files off the Orignal copy of a Xbox game and make a exact copy of the files off the original xbox game, Why then are you not able to play a exact copy of the game in a unmodded console.?
Basically, this is why... The discs are pressed, and no matter what you do you cannot burn the exact contents of the original disc to a blank disc. What the modchip does is allow the Xbox to overlook the bootup files on the disc and go right into the game.