Extend the life of your media with our Archival CD/DVD Jewel Case Inserts. Over time, environmental elements can cause the thin layer of metal on CDs and DVDs to break down and oxidize, rendering the discs unreadable. These specially treated inserts prevent oxidation, extending the life of your discs for more than 40 years. To use, simply attach the insert to the CD or DVD case and place the disc on top. Proven Corrosion Intercept Technology® prevents ozone and reactive oxygen Made in the USA