eli5 why does putting toothpaste on scratched disks fix them?

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As the title says why does toothpaste fix disks

In: 2049

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Anonymous 0 Comments

Scratches appear visible because of the indent in the material and the light refracts back from the material making it visible similar to a scratch on paint work, buffing out the scratch with an abrasive polish or toothpaste feathers out the rigid scratch so that the light doesn’t bounce back meaning the laser can read it without distortion

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