Things You'll Need
Instructions
Dampen 1/2 of the cotton cloth with plain water. Do not use soap, spit or other substances, as these might damage the disc.
Wipe dust and fingerprint smears off the disc using the damp half of the cloth. When doing so, start in the middle of the disc and move outwards towards the edge. Do not wipe the disc in a circular fashion, as this can also cause damage.
Place the disc bottom up on a flat surface so that it can dry. Let it dry for two to five minutes before putting it in the GameCube system again.