this post was submitted on 22 May 2026
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Fuck AI
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AI, in this case, refers to LLMs, GPT technology, and anything listed as "AI" meant to increase market valuations.
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Guys please backup your shit on blurays
BR disc sizes are:
25GB
50GB
100GB
Create an open session backup disc and add incremental backups monthly, mid year and end of year or yearly, etc...
I doubt the average person, even among nerds here, has a Blu-ray burner. What's wrong with flash drives? They're even more durable.
>I doubt the average person, even among nerds here, has a Blu-ray burner.
They can be bought
If you get cheap large flash drives the thing that's wrong with them is QLC memory, and the fact flash memory rots over time.
Bitrot is a thing no matter the medium it's just what timescale we're talking about. Blurays are the poor man's LTO tape backups. M-disks were also good for a long time too. Very stable and high density.
However there is a way to make flash drives work for a backup solution. I would pair drives together in mirrors under ZFS. Maybe 4-6 drives in a pool, with 2-3 mirrors. That way you have error detection (ZFS checksums for every bit of data stored), and error correction (mirrored data across drives, along with the checksum to verify which copy is good).
It also allows you to run "ZFS scrub " to check everything once a month or so and detect corruption and fix it. ZFS can also identify a drive that's failing from consistent errors.
Edit: if you don't run Linux you could manage this using a raspberry pi 3 or 4 as the host. It could be a very low power and cheap NAS.
Flash memory cells have very limited lifetime, especially powered off. Seen motherboards die from not being powered on for a long time.