It must be scratched. You can get a someone to remove the scratch for you.... but, it's pretty expensive.
Chat with our AI personalities
Shake the Wii very strong.
try it and find out
If the disc has scratches that make it not work, try using a pencil eraser and rub from the center to the edge. It rubs off a small layer that rubs away the scratches. Hope this helps!
If it only does that for a certain disc, then the disc is probably damaged and needs to be replaced. If this happens for all discs, then there is a problem with your disc reader. If that is the case, contact Nintendo and see if they can fix your wii.
if the disc reader is lighting, turn on the wii and go to the Wii Message Board it means that you have a new message