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posted by mrpg on Wednesday March 28 2018, @07:54AM   Printer-friendly
from the anything-more-than-500-is-good dept.

Scientists have developed an optical disc technology that they say can store at least 10 terabytes per disc with a lifetime of over 600-650 years:

"While optical technology can expand capacity, the most advanced optical discs developed so far have only 50-year lifespans," explained lead investigator Min Gu, a professor at RMIT and senior author of an open-access paper published in Nature Communications. "Our technique can create an optical disc with the largest capacity of any optical technology developed to date and our tests have shown it will last over half a millennium and is suitable for mass production of optical discs."

[...] The new nano-optical long-data memory technology is based on a novel gold nanoplasmonic hybrid glass matrix, unlike the materials used in current optical discs. The technique relies on a sol-gel process, which uses chemical precursors to produce ceramics and glass with higher purity and homogeneity than conventional processes. Glass is a highly durable material that can last up to 1000 years and can be used to hold data, but has limited native storage capacity because of its inflexibility. So the team combined glass with an organic material, halving its lifespan (to 600 years) but radically increasing its capacity.

Also at RMIT University.

High-capacity optical long data memory based on enhanced Young's modulus in nanoplasmonic hybrid glass composites (open, DOI: 10.1038/s41467-018-03589-y) (DX)


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  • (Score: 3, Informative) by JoeMerchant on Wednesday March 28 2018, @01:02PM (3 children)

    by JoeMerchant (3937) on Wednesday March 28 2018, @01:02PM (#659465)

    All these claims of life into the decades and centuries for technology that's barley been through a year of accelerated life testing...

    They've been doing it for decades, but I don't think that the actual lifespans live up to the marketing claims - other factors (dust, humidity, moving parts, small pitch pins with lead-free solder) tend to corrupt the media long before the tested aspect becomes a problem.

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  • (Score: 2) by anotherblackhat on Wednesday March 28 2018, @02:12PM

    by anotherblackhat (4722) on Wednesday March 28 2018, @02:12PM (#659509)

    M-disc was released in 2009, it's had more than one year of testing.

  • (Score: 2) by Freeman on Wednesday March 28 2018, @05:40PM (1 child)

    by Freeman (732) on Wednesday March 28 2018, @05:40PM (#659604) Journal

    You would need regular maintenance on a drive with moving parts, etc. What's being talked about is the storage media itself. Not the drive used to read the storage media. Ideally something like M-Disc or the new tech discussed here would be stable and usable for a long time.

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    • (Score: 3, Funny) by fyngyrz on Wednesday March 28 2018, @07:15PM

      by fyngyrz (6567) on Wednesday March 28 2018, @07:15PM (#659641) Journal

      Scene in the year 2500 C.E.:

      Archeology intern: "Hey, what's this?"

      Archeologist: "Another ten terabytes of porn."