Wayne Parham Messages: 18835 Registered: January 2001
Illuminati (33rd Degree)
You can repair light scratches on compact disks provided they aren't too deep. What you must do is to sand and buff the disk to remove a layer down to the scratch depth. That then removes the scratches.
As long as the damage is limited to light surface scratches, then sanding and buffing will work very well. It just can't be so deep as to get into the data layer.
Best to use a product that is designed for the purpose. Headlight repair kits are perfect for it. There are also CD repair kits that work well.
All that said, I must admit that I tend to replace CDs when they get scratched rather than to repair them. It's a price-versus-effort thing for me. A headlight lense is rather expensive to replace, so it makes sense to repair it. But unless a CD is rare, it seems to me it would be easier and less expensive to replace than to repair.