Introduction: Fix a Scratched Cd or Dvd for Cheap!
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Fix a scratched disc by sanding and polishing the surface using sandpaper and plastic polishing techniques. This technique does the same thing as a resurfacer but costs less than $10 total.
Products I used:
To smooth out the disc surface: 3M Auto High Grit Sand Paper 1500-2500 grid: http://amzn.to/1ugce4K
3M Rubbing Compound I used: http://amzn.to/1uLu16h
With those two items, you can probably fix 200 discs AND restore some head lights.
*Note* Bluray discs only have about 100um of hard coating and sanding it may not be a good idea.