this post was submitted on 08 Feb 2025
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What do people use for a shelf-stable backup (lemmy.nz)
submitted 1 year ago by Dave@lemmy.nz to c/selfhosted@lemmy.world
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I have backups on a backup hard drive and also synced to B2, but I am thinking about backing up to some format to put in the cupboard.

The issue I see is that if I don't have a catastrophic failure and instead just accidentally delete some files one day while organising and don't realise, at some point the oldest backup state is removed and the files are gone.

The other thing is if I get hit by a bus and no one can work out how to decrypt a backup or whatever.

So I'm thinking of a plain old unencrypted copy of photos etc that anyone could find and use. Bonus points if I can just do a new CD or whatever each year with additions.

I have about 700GB of photos and videos which is the main content I'm concerned about. Do people use DVDs for this or is there something bigger? I am adding 60GB or more each year, would be nice to do one annual addition or something like that.

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[–] philpo@feddit.org 3 points 1 year ago

You need a designated M Disc capable burner,yes. (Not generic BDXL,there are slight differences) There are a few on the market though - they cost around 100-150 bucks usually.(In theory you can use a regular writer sometimes - I know people who do that,but why risk that?) I usually recommend the verbatim to my clients,they are dirt cheap and work flawlessly so far.

For reading the discs any regular data-capabale blue ray disk drive will do.