>>60580386From the library of congress website using 1200 different CDROMS, only 4% had an overall failure rate over 15 years. ~70% over 100 years (est.). Im pretty sure they still use them to this day along with tape.
Floppy discs are good too imho including blu rays. But M-discs are tested to last for 1000 years. I guess what matters the most is where i am storing the 22 random character passphrase to decrypt it.
I really like the idea of storing it on a PSP disc (universal media disc) or a gameboy cartridge for the novelty. Or that theyre probably more durable than a CDROM itself