cross-posted from: https://lemmy.eco.br/post/4492477

How to store digital files for posterity? (hundreds of years)

How to store digital files for posterity? (hundreds of years)

I have some family videos and audios and I want to physically save them for posterity so that it lasts for periods like 200 years and more. This allows great-grandchildren and great-great-grandchildren to have access.

From the research I did, I found that the longest-lasting way to physically store digital content is through CD-R gold discs, but it may only last 100 years. From what I researched, the average lifespan of HDs and SSDs is no more than 10 years.

I came to the conclusion that the only way to ensure that the files really pass from generation to generation is to record them on CDs and distribute them to the family, asking them to make copies from time to time.

It’s crazy to think that if there were suddenly a mass extinction of the human species, intelligent beings arriving on Earth in 1000 years would probably not be able to access our digital content. While cave paintings would probably remain in the same place.

What is your opinion?

    • GreyEyedGhost@lemmy.caEnglish
      8·
      9 months ago

      HDDs aren’t written physically onto the plate. They flip magnetic fields. Anything relying on magnetic fields to store data is going to have a lifespan measured in decades, at best.

        • pelletbucket@lemm.eeEnglish
          4·
          9 months ago

          lol a drive continuing to work for 10 years doesn’t mean that you could write to that drive, and have it sit in a drawer for over 10 years without the data getting corrupted.

            • Auli@lemmy.caEnglish
              4·
              9 months ago

              Not true the charge in the cells also leaks so it well eventually become corrupt. You can see it in running SSDs in sections that are not written to a lot. The data sits there unchanged and the SSD has to do error correction and it slows down the drive.

                • pelletbucket@lemm.eeEnglish
                  6·
                  9 months ago

                  I don’t think I’ve had a conversation that felt so much like Reddit on Lemmy until just now. when stored at a non-absolute zero temperature, magnetic discs are subject to thermal relaxation, even if they’re kept at a steady temperature. besides the fact that you’re going to pretend like we weren’t specifically talking about the HDD plates, I’m not continuing this conversation because holy shit you’re just trying to be frustrating

        • GreyEyedGhost@lemmy.caEnglish
          3·
          9 months ago

          Highly presumptive on many fronts, as well as conflating the ability to reliably write with the ability to read data over the same time span. So, tell me of the connector on this hard drive that you have that is older than me. And what do you use that drive for beyond as a curiosity?

            • GreyEyedGhost@lemmy.caEnglish
              2·
              9 months ago

              And there’s that presumption. Just like the idea that a Faraday cage will block a magnetic field such as the earth’s. And unless your suggestion is that the poster just has to store his archive on the moon or farther, it will still be subject to influence from another magnetic field. And everything I’ve read puts bit rot at about 1% per year, which means, even with aggressive error correction about 50% of the archive will be lost within 70 years without an active refresh of the media. That’s not what’s generally meant by archiving. If it was, we would be talking about a process and a commitment by third parties to keep some random person’s archive intact for a century, unless what you’re really trying to suggest is that the real trick to building an archive that will last over a century is to live even longer?