Things You'll Need
Instructions
Magic ISO
Go to "Start" followed by the "Computer" utility. Right-click the disc drive which contains your backed-up Wii disc.
Select "Magic ISO" followed by "Make Image from..." Allow Magic ISO to launch automatically.
Click the "Browse" icon from the "Output File" section. Select the image's target destination and click "Save."
Select "Standard ISO Image File" from the "Output Format" drop-down options. Click "OK" to initialize the ISO image creation procedure.
ImgBurn
Launch ImgBurn and click "Create Image File from Disc."
Click the "Browse" icon from the "Destination" field. Browse for the desired target destination within your computer and click "Save."
Select your disc read speed from the "Read Speed" section. Click the "Read" icon at the bottom of the program's interface to effectively create the ISO image.
Power ISO
Open Power ISO, go to "Tools" and click "Make CD/DVD-ROM Image File."
Click the "ISO File" option from the "Destination File" field.
Click "Browse" and select where you wish to save the image within your computer. Click "Save" to proceed. Press "OK" to make the ISO image file from the backed-up Wii game.