BOXPRO® CD Case & Video Game Box Protectors
For CD Cases, PS1, Dreamcast.
12 mil Crystal Clear Archival APET.

Just what I needed.

First of all, I love these. It actually took me awhile to find them online too, because nobody on Amazon has them at the moment. Great things about these are: 1. They are almost completely clear. I've actually put one of these on a CD, and then picked it up later and tried to put another one on, because I didn't notice it was already covered. 2. They're pretty thin, and they don't have corners sticking out like soft plastic sleeves do. 3. They actually survived the drop test. So don't go throwing your CDs around, but these do offer more protection (in my simple tests) than soft plastic sleeves. That said, the only reason they get 4 stars instead of 5 is that the flaps fold in to opposite sides, so there's always a flap visible on the front face, no matter which way you put the CD in. I would like them better if both flaps folded in to the rear side so the entire cover was open.