Things You'll Need
Instructions
Purchase or download and install a DVD burning program that can handle burning Wii games. There are many programs that have this ability, but the top two are Game Copier, which is a free shareware program, or BlindWrite, a for-profit program that is relatively inexpensive.
Select the Wii game that you wish to backup and place it into the DVD drive of your computer. Open the burning program that you selected.
Click on "Read" from the home screen of the burning program.
Create a folder on your computer so that you can store the data from the Wii game temporarily.
Select the "Synchronize" or copy button in the burning program. The ISO file from the Wii game will then be copied over into the temporary folder that you created.
Remove the Wii game from the DVD drive.
Place a blank DVD-R into the drive.
From the main screen of the burning program select the "Write" option. You will be asked to locate the Wii ISO file that you stored in the temporary folder.
Click on the "Copy" option, the Wii ISO file will be added to the DVD-R and your backup will be ready to use when needed.