I keep a pdf of my many many favorites and playlists, so I can reconstruct (or even purchase) this music if all goes to hell.
That could be pretty expensive!. Are you aware of the cost of CDs at present? I’ve been shelling out $20 on average for most of my CD purchases. Granted, many are out of print, but still, compared to the pre-Covid era, discs are considerably more expensive and the titles I’m interested in are becoming increasingly difficult to find. I’m actually buying back-ups for some of my favorites, because I have no idea what will be available in a couple years.