Things You'll Need
Instructions
Power up your Wii and push the power button on the Wii Remote to connect it to the console. Remove any disc inside the console.
Connect your Nintendo Wii to the Internet either through your wireless connection or through an Ethernet cable plugged into the rear of the Wii.
Select the "Homebrew" channel on the Wii dashboard and select "DVD Dumper" from the menu that appears. Select the first option on the DVD Dumper menu until it reads "Network Mode."
Select "Wii Single-layer Disk" as the type of disc you are backing up. Insert your game disc into the Wii. It will begin to back up the disc to your home network. When the backup is complete, a web address will appear on the screen.
Open a browser on your computer and go to the web address that DVD Dumper displayed after the backup completed. Click "Download ISO" and you will begin to download your Wii ISO file to your computer.