Dolphin doesn't recognize Metroid Prime 2 Iso?

[daholyone11]

So I try to play metroid prime 2 with the dolphin emulator, but all I get is a black screen, and then after a bit the emulator shuts off by itself. I can play the first metroid prime game just fine, in fact, I beat the game, but for some reason, this isn't working with metroid prime 2? Even when I choose to open a file from my file browser, I have to select "all files", for the game to show up, I don't have to do this with metroid prime 1, which shows up in the file browser when it looks for "All GC/Wii files (elf, dol, gcm, iso, wbfs, ciso, gcz, wad)"