I use these with the Wilson Jones Large Capacity Hanging Binders. This is a great way to file away your CDs in a file cabinet without having to place the CDs in a CD storage binder having flip through them from page to page to find the CD you're looking for.
I have the CDs sorted by similar type inside the pockets.
They are good to use for storing non-hole punchable items like CDs and Pens.