I would never trust a disc for long term storage. I have way too many cd-rs that are unreadable or degraded and they're not that old. Already starting to find degraded DVDs in my piles of junk. I could find more, but I have like 6tb of storage so I don't recall the last time I had to root around for DVDs.
I'm becoming a bit of a minimalist. I'm happy to not have to manage crates of discs and paper sleeves. I'd much rather have things digitized and confined to a tiny box. The only things I like to see racked up on shelves are books.