Things You'll Need
Instructions
Install a program into your computer that will convert your video files into those the Wii can play, such as Wii Video 9 (see Resources).
Move the new file that contains the converted video onto an SD memory card. How you do this depends on the type of computer you have. The program will likely give you information on how to go about transferring the files based on your type of computer.
Insert the SD card into the front of the Wii. Once the card is inserted, go to the "Photo Channel" option on the console and you will see the video appear.