My CDs in 2006 , and my CDs now:
I have completely gotten rid of their cases, liner notes, etc. This is all music I listen to on a regular basis. Just like keeping the box to a computer you’ve had for over a year, there isn’t much point in keeping CD cases for discs a decade old or older.
(3×144 + about 20 in the front side between them = ~452 CDs. 0.7 cu. ft.)