I recently ripped all my CDs to WAV files (got tired of the space all those physical discs were taking up). 800+ CDs, some of which dated back to the dawn of the digital music era in 1983. Some of them (music from Eurythmics, Dire Straits, Pink Floyd) required several passes to get a clean copy, but I was able to copy them all.

In my case, I always kept them in their jewel boxes, which were stored vertically, much like you'd store an LP. For most of their life they were kept indoors, but they also spent about 3 years in an unheated storage unit.

The fun part was finding adapters for the few 8 cm CD singles I had, so they'd play in a modern slot-loading drive.