Instructions
Video Converter
Download and install a copy of 4Easysoft's Free Wii Converter to transcode your video files into a Wii-compatible format. Launch the program after you've installed it.
Click on Free Wii Converter's "Add File" button, to browse for a video file to import into the program. Click on the program's "Browse" button, to set an output folder for your converted video.
Click on Free Wii Converter's "Convert" button, to begin encoding your video file into a Wii-compatible format.
Audio Converter
Convert your audio into a Wii-compatible format, using Online-Convert's Audio Converter.
Click on the "Select target format" menu box, and then select a Wii-compatible audio format. Select either "ACC" or "MP3." Click "Go."
Click on the utility's "Browse" button, to select a file to convert. Then click on the "Convert" button, to convert your audio file and download it to your computer.
Image Converter
Convert your images into the Wii-compatible JPEG format, using Picture Resize's free utility.
Click on the utility's "Browse" button, to browse your computer for the image you'd like to convert. "JPEG" should be selected automatically in the "Convert to" menu box. Click on that option, if it isn't selected.
Click on the "Convert Now" button, to convert your image into the JPEG format.