The Magic of the Wii Startup Disc

What would you do if, in 2006, your newly bought Wii told you to insert a Startup Disc that is not in your Wii box? Where do you find it then? Does it exist? Is it a bug? Can you burn one of these on a CD or DVD with your parents’ pc without them noticing? Will pressing A+B+Down on your Wii Remote skip that screen and let you...