Currently using an M3 DS Real, patched rom, it goes to black screen right after selecting a new game, also the patch wouldn't work for me, I tired using the good old, drag and drop the rom right onto the patch, it failed, tried to just open the patcher, failed, I tried naming the rom everything on the Earth that looked valid, and I looked inside the patcher itself to see what to name the rom, copied the name in there, failed again. So I went with the xDelta GUI, which worked, but the rom froze. So then I went out and got myself a prepatched rom, and two black screens of sadness. I don't think the patch works, well at for for M3 Reals.