Things You'll Need
Instructions
Insert the SD card into the computer's SD card reader. Create a new folder in the SD card's root directory and name it "Apps."
Open the computer's Web browser and download the Custom IOS249 firmware and WiiHTTP dumper applications. Place them into the "Apps" folder on the SD card. Eject the SD card from the computer.
Insert the SD card into the SD card reader on the Wii system. Click on the "Homebrew Channel" to launch it.
Click on the "Custom IOS249 Installer" to install the patch. Allow several minutes for the install to finish.
Return to the "Homebrew Channel." Insert the GameCube disc you wish to copy into the Wii's disc drive and click on the "WiiHTTP Dumper" application.
Write down the IP address provided by the WiiHTTP Dumper application.
Open the computer's Web browser and type the IP address you wrote down in Step 6 into the address bar. Press the "Enter" button.
Click the "GameCube ISO" link on the new page. Accept the download. Allow several hours for the download to finish.