• Deestan@lemmy.world
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      2 months ago

      Yeah good ones allegedly last 200 years if stored correctly. Cheap ones are 5-10. 20 can be expected for quality CDs stored correctly.

      But no matter the claimed quality, it’s a gamble. Our local library had a lot of 10-20 year old CDs that had developed microbubbles.

      5 years is low range for CDs, but common enough that you should be taking backups for anything you keep longer.

      • dual_sport_dork 🐧🗡️@lemmy.world
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        2 months ago

        Don’t conflate a mastered CD with an aluminum data layer with a recordable CD-R or CD-RW, which use organic dyes that have a significantly shorter lifespan.

        A properly manufactured CD can last 200+ years if it’s stored in a dry environment free of UV exposure and high levels of moisture.

        Even a quality CD-R can’t really be expected to retain all of its data integrity for much more than 10 years.

        • Katana314@lemmy.worldOP
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          2 months ago

          First released in Japan in October 1982, the CD was the second optical disc technology to be invented (–Wikipedia)

          Sorta doubting whatever study found proof that a CD can last 200 years…

          • dual_sport_dork 🐧🗡️@lemmy.world
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            2 months ago

            Obviously no one’s seen it happen first hand. It’s a projection based on what’s known about the materials and how they’re made. Burned CD-R’s have definitely been out in the real world for people to learn how short their lifespans can be, though.

            Nobody could “prove,” for instance, that the Voyager 1 could stay operational in deep space for 47+ years when it was launched in 1977, but the engineers could still predict and they launched it anyway, and it did. I don’t think your argument really holds water.

          • Midnight Wolf@lemmy.world
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            2 months ago

            That’s what I think when I read endurance/mtbf of hard/solid state drives of like 100+ years. Bitch you released this last week and I know for a fact that you didn’t withhold sales for 100 years for validation of your claims. Also funny how I should reasonably expect 100 years out of it, but you will only provide a warranty for the first three