My da used to fix them, back in the 90s when they were all CDs. Whenever they swapped a load out to be replaced by more up-to-date ones, my da would bring the old ones home.
I’ve still got hundreds of them, they were most of my music collection when I was a teenager. No tracklisting most of the time, so I used to just sit and play through them all (some CDs don’t have the artist or album name either, so you might listen to something for ages without even knowing who it was).
Then mp3s and all that came along and the world has been nothing but shit ever since.