first off don't use their dat file it has a timebomb which bricks the cart after a certain date for best results google ysmenu for r4i-sdhc gold pro it will bring you to a post on temp dl retro game fans ys menu and look for the r4isdhc dat rename it to R4.dat though i would use the original dat to create a save for bw/2 if you plan to play it (YS seems to freeze on the intro after inserting your name), if you save afterwords it will play just fine