That was great. It's strange how many disk hacks there are considering a lot of them require something else to work.
Well people used to copy these disks all the time. Maybe copiers were quite common place, I just haven't had much luck finding them for Famicom-era stuff. On a side note, I always find SNES / SFC copiers, but usually pass them up, since they are clunky, have little demand, etc.