eli5 why does putting toothpaste on scratched disks fix them?

Question

As the title says why does toothpaste fix disks

In: 2049

Answer 1

Toothpaste is a rubbing compound the same as car wax. It’s essentially super fine sandpaper except it’s in the paste instead of stuck to paper. Polishing your tooth enamel is the same as polishing faded car headlights or cds.