• Yggstyle@lemmy.world
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    1 year ago

    The article is very light in detail but from what I’ve gathered they may only be in the proof of concept stage and looking for outside investments. This tech is years off which is basically a deathknell for anything targeting a today problem with a tomorrow solution. In data at least.

    Longevity, Speed, Density… pick 2. This assumes rewritable media, of course… because we need feature parity. The current project appears to have at best 1 of the big 3.

    Non magnetic media makes a lot of sense- but if we’re dealing in lasers we are limited by the spectrum of light. Sure you can probably focus a beam to burn into a layer 2, 15, 70 layers beneath another (and that’s impressive) … but explain how you plan to read that through the other layers. Explain how you will do it /quickly/. Explain how you won’t compromise the other layers receiving diffused light. I may end up being wrong but my gut tells me this is a research team just looking for venture capital.

  • SeaJ@lemm.ee
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    1 year ago

    Optical discs are not really meant for longterm storage on their own. Disc rot is a real thing.

    Edit: I should have gone into a bit more detail. Yes, optical storage discs CAN be okay for longer term storage. But it depends on quite a few factors. The material itself has to be long lasting, the manufacturer has to have good quality control, and the end client should store it in a controlled environment. It’s it better or worse than alternatives. No idea without the actual data. It certainly has better density.

    • mipadaitu@lemmy.world
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      1 year ago

      Optical discs are not one thing, they’re a variety of different technologies. This particular one is predicted to last many decades.

      • fuckwit_mcbumcrumble@lemmy.world
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        1 year ago

        recently fixed

        No, not really. Generally as a product ages the quality control goes down since demand isn’t there. You can make archival grade CDs that will last a life time, it just costs too much money for anyone to want to pay for it. Plus business have tape which is plenty good for long term storage.

        • Flying Squid@lemmy.world
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          1 year ago

          That makes sense. Why improve the process if it costs more to do so and most people don’t need it to last that long? But at least archival-quality CDs are out there.

    • banichan@lemmy.world
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      1 year ago

      Depends on what material they switch to. They could be using some new polymer or something, hence the longer lifespan.

      • SeaJ@lemm.ee
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        1 year ago

        True. It also depends on manufacturer quality controls and end client storage environment. I just recall that being a big selling point for DVD and CDs only for some people to find unreadable garbage after a decade. Or at least not easily readable garbage.

    • wildbus8979@sh.itjust.works
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      1 year ago

      *Some optical discs. Others not so much, it’s not an inevitability… M-DISC, introduced in 2009, has a rating with proper storage of one THOUSAND years. They are even readable and writable by most regular DVD/Blueray drives!

      https://en.wikipedia.org/wiki/M-DISC

      I absolutely cannot wait for these new discs to be available!

    • 1024_Kibibytes@lemm.ee
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      1 year ago

      That was my question about this. It can store a lot of data, great! But will the media last 10 years or more? For real long term storage it needs to last decades.

      • don@lemm.ee
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        1 year ago

        From the article:

        Another associated benefit would be the minimisation of data migration. The discs are said to be highly stable, with an expected lifespan of 50 to 100 years. That’s a huge leap over current data centre HDD based storage systems, which generally move data over to new devices every five to 10 years to avoid data-loss from ageing drives.

    • Fandangalo@lemmy.world
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      1 year ago

      The expansion of that abbreviation feels like an idiocracy joke.

      “We store the computer data on VBDs.” “What is a VBD?” “Very large disc^tm. It’s pretty advanced.” And then they just bring out an insanely large disc.

  • BertramDitore@lemmy.world
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    1 year ago

    And they’re completely scratch-proof, right? I remember losing a CD-RW here and there (I’m old) because of scratches from everyday use. It’s fine when they only hold a few gigs, but 200 terabytes better be damn indestructible…

    Put it in a minidisc-like plastic case to basically make it a cartridge and we’re in business.

    Edit: oh, long term storage. My bad. Still, durability seems pretty essential.