Your writing like checksums aren’t existing. They exist!
I’ve bought some 15 year old floppies recently. They work. Had just to learn, that formatting them is required. In handling they are like SD-Cards.
Which is far better than the CDs, DVDs, Bluerays or records (you now…this big black discs with a needle).
And you don’t have to worry about network attackers. And we checksum everything from the network. For good reasons.
The more expensive blurays are quite long lasting, being non-dye based.
Absent doing something wildly abusive, vinyl records will play fine for a long time. And the degradation is comparatively graceful.
Source: go to any used record shop and find a copy of Chicago >5[0]. It'll almost certainly play, even if the music wasn't particularly good to start with.
[0] There are many copies of later Chicago albums in used record stores.