You will need several things to make this happen:
Wii with firmware 3.4 and under.
A Wii with a functional DVD drive.
A computer with a usb port.
A large usb stick or usb hard drive.(8 GB at most for dual layer games.)
The Homebrew Channel
Usb Loader 1.5
WBFS manager 3.0 or higher.
Wii game (Bought or burned backup)
I suggest you use a large usb external hard drive for permanent tertiary storage).
Step 1: Rip game to usb Drive.
Turn on the Wii,go to Menu, and start usb Loader Channel.
The screen will go green for a second and you be in usb loader 1.5.
Use the left and right directional cursors to choose "usb mass storage device" and press "A" on your Wii remote.
You will see your usb drive, what games are on it, and how much space is left. ( I recommend that it should be empty.)
Insert your Wii game into your Wii DVD drive, and press "+" on your Wii remote, then either press "A" on you Wii remote to completely rip the game or press "1" to rip the game without the update partition.
After that it will start the ripping process and display the percentage ripped, size of the ripped file, and the estimate time until ripping is complete.
##Remember that some games are smaller than others and will take a shorter time to rip. A perfect example of this is "Super Paper Mario". Even thought it is on a 4.7 GB DVD, it's only 400MB in size. That means that 90% of the DVD was filled with nothing but zeros.##