Yes, you are allowed to use Wii for a run with an official disk. The only thing that isn't allowed is running the game through an SD card or USB device on a softmodded Wii, or on emulator. You can get the Wii signal through your PC using a capture card. Some recommendations I would give is the Elgato Game Capture HD ( https://www.elgato.com/en/gaming/gamecapture-hd ) if you're using Composite (Red, White, and Yellow) video cables on the Wii. However, if you're using Component cables on the Wii (Red, Green, Blue, another Red, and White) then I would recommend the Avermedia LGP. ( http://www.avermedia.com/gaming/product/game_capture/live_gamer_portable ) I know they are a bit pricy, but this is what I recommend. Others would say to use things like easycap or Dazzle, but I heard some bad things about those, so I wouldn't recommend those. Let me know if you have any more questions.