Nero Burning Rom is a popular utility to back up and copy data. Music, documents and applications are but a few supported options within Nero. Moreover, it possesses the ability to burn data in the form of images. In turn, it prepares your finalised disc with an "auto-run" feature that allows external devices to recognise the data within. This function allows you to burn Wii games with Nero for backup purposes.
Launch the "Nero Burning ROM" applet from your desktop or its Start menu entry.
Go to the "Recorder" menu and click "Burn Image." Browse for the Wii game image in your local hard drive. Select "Open" from the dialogue box in question.
Assign your desired write speed. Select the "Finalize Disc" option. Click "Burn" to initialise the Wii game burning process.