Wall Mounted Expandable CD Rack

This one is for the old-timers. You see kids, there was a time when hundreds of these things called Compact Disks were in everyone's house -- they were a crude storage medium for digital music files.
I still buy CDs -- these days directly from the bands I like so they can get at least a little bit of earnings. Anyhoo, just like when I used to record vinyl to cassette tapes to keep the records pristine, I now manage to need storage for all the CDs I have after I rip them. The wife may require