My father told me he wanted to make USB flash drives of all the scanned and digitized family photos and other assorted letters and mementos. He planned to distribute them to all family members hoping that at least one set would survive. When I explained that they ought to be recipes to new media every N number of years or risk deteriorating or becoming unreadable (like a floppy disk when you have no floppy drive), he was genuinely shocked. He lost interest in the project that he’d thought was so bullet proof.
It’s even the case for physical media, like paper and carved stone, because over a long enough time people forget the language that they were written in. Historians had to teach themselves how to read ancient egyptian, and off the top i think a lot of Maya inscriptions are still a mystery.