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The manufacturer of the M-Disc DVD claims that the data written on these discs will last for 1000 years if the discs are written to and stored correctly.

What is worth saving forever? Thanks to M-DISC™, the permanent storage solution, you don't have to decide. This new standard of storage engraves your information into a patented rock-like layer that has been proven to last 1,000 years [...]

Is there any evidence for this?

  • Have you even looked at the links in the wikipedia page you linked to? The first one is called 'Final Report for Millenniata DVD Testing August 2009-October 2009', which might shed some light on how they did their testing. You'd also probably want to ask the manufacturer for their test methods and results. – Michael Kohne Mar 24 '14 at 10:42
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    @MichaelKohne: I read that report. While they may have gathered the data as required by the ECMA-397 standard, they never take the step of calculating the expected lifetime. – Oddthinking Mar 24 '14 at 11:57
  • You might do better if your question included things like the evidence presented by the manufacturer, and what you consider wrong with that evidence. – Michael Kohne Mar 24 '14 at 19:56
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    Unless you're willing to wait for 1000 years, there isn't really a definitive answer anyway. AFAIK there are claims that accelerated aging test are unreliable. – vartec Mar 25 '14 at 13:45
  • Even if the disc is good for 1000 years, what are the chances of a (working) reader being available then? Have you seen an 8" floppy drive recently (they're still on eBay)? – hdhondt Apr 13 '14 at 23:29

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