Get scratches out of gamecube disk
Both scratches and dust can affect the playability of a game disc. Cleaning it can usually do the trick. Several techniques will clean the disc and make it useful again, saving time and money that would have been spent on a new game.
1. Before you apply disc cleaner, wipe with a microfiber cloth or other soft fabric. Wipe from the center of the disc outward. Don't wipe your Wii game disc in a circular motion, as this can damage it further. Test it to see if it works.
2. Rinse the disc with water if the first step didn't work. This will get rid of any oils that have gotten on the disc. If you see gunk that won't easily rinse off, use your fingers and a light dish soap to wipe it off underneath the stream of water. Remember to wipe from inside out, the light soap will serve as disc cleaner.
3. Dry the disc. First, shake off any excess water. Then set it out to air dry. Don't use a cloth for this step as that could add little fibers that may cause trouble. Once the disc is completely dry, try it in your Nintendo Wii to see if the disc repair worked.
4. Use rubbing alcohol with a cotton swab and gently coat the disc. Allow to dry. The disc will dry much quicker when wet with alcohol than it did with water. Still, you should wait until it's completely dry before you try the game disc in your Wii. By now, your disc should be working. Most disc read errors on Wiis are due to dust and dirt, rather than an actual scratch.
5. Spread toothpaste on the disc. This disc repair method should be used as a last resort. Using plain, white toothpaste, rub a quarter-sized amount in a circular motion with your fingers on the disc. Cover the reflective side of the disc completely. There should be a thin layer over the game disc when you're done.
6. Let the toothpaste sit on the disc until it is dry. This shouldn't take more than 10 minutes, although it depends on how much toothpaste you used.
7. Run the disc under warm water, rubbing the toothpaste off with your thumb. Make sure you get it all off and the disc is thoroughly rinsed. Allow to air dry. Then try the game.