I like to borrow audiobook CDs for my commute from the library. I found sometimes a couple of CDs in the package are badly scratched. Here is how I’m able to fix them.
If the scratches happened on the shiny side, you probably also know how to fix them. You just use some slightly abrasive polish agent and use a clean cloth to rub it.
Sometimes the scratched happened on the cover side. It then become seemingly hopeless as the laser would just go through the scratches and read nothing. But you can’t polish off the scratches as it will further damage the cover and make things even worse. However, I found a very simple way to fix this. I used a black dry erase marker – since the particular CD cover is mostly black. I think permanent marker probably works too, but I wasn’t too sure the first time so I use something that is reversible. After I covered the scratches, the CD magically reads fine!
Give it a try next time you found abused CDs from the library.