cross-posted from: https://lemmy.dbzer0.com/post/36672698
Source: https://xkcd.com/1683/
this post was submitted on 30 Jan 2025
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There's M-discs which are supposed to last for 1000 years, but obviously nobody has fully tested that yet. They're readable by normal DVD and Blu-ray players and go up to 100GB capacity.
There's LTO tapes as well of course, but they're not rated to last for as long (only 30ish years).
Oh thank you for telling me about these, I wasn't aware that there was a DVD/bluray format designed for archival purposes. The media is more expensive than I remember blank discs being back when I still used them, but it's not horrible either, like $100 CAD for a 25 pack.
It's probably too late by now for my old backup/data CDs and DVDs, but this is the first time I've felt like I could be confident in something to store data that I want to archive without worrying about doing the active archival stuff with (and where the files won't be stored on someone else's computer, putting both my privacy and data security in their hands).
It's also given me a good reason to get a drive capable of reading those old data discs to see if I can even access that data still, though I'm not holding my breath. The writers aren't even that expensive.
Edit: Correction: m-disc BDXL 100GB discs are pretty expensive, now that I'm looking deeper. 100 CAD will get a 25 pack of 25GB discs, 50GB discs are a little more than twice that and 100GB are a bit more than twice the 50GB.