Yesterday....  I  made an iso using nero.. here is the catch... I think it was a 256k flash bin I don't know which one.. I also used a 50 mg dummy file.. but i changed the  file extension name to a wmv , or m2v.. i don't know which one.. but the irony of this is  it flashed for a second -- do you want flash this xbox ... I'm tell you all this is the way.. maybe a higher flash .. but i almost had it .. now xbox 360  blinking crazy colors....  i'll buy another one... but i'm gone crack this bitch... I think the way to go is through the Emulator...  For what it is worth.. most modchip sellers don't want you to do this because they won't make no money...