If you have deep scratches, consider sending the disk to a disk repair service. You could also try more abrasive treatments, such as a non-petroleum-based metal polish. [2] X Research source
Avoid any rough or dusty materials. If the disk is visibly greasy or dirty, wipe it under running water.
Hold the disk by the rim to avoid adding additional dirt and oil from your fingers.
Place face down on a couple layers of paper towel and wait until dry. Loosely wad a paper towel and brush from the center outward. Do not push onto the disk; the only pressure should come from the bending of the paper towel. [4] X Research source Let air dry.
Baking soda toothpaste works well due to the extra grit. If you’re lucky, your toothpaste will list an abrasion rating, called RDA. No one’s tested how RDA affects disk cleaning, but a higher rating (120+) should work better.
Do not polish harder in an attempt to speed up the process. This can cause further damage to the disk.
If there is no noticeable improvement at all, try again with a grittier toothpaste, or with petroleum-free metal polish. If two rounds of polishing do not work, try sending it to a disk repair service. These can buff out the scratches with a special machine.
