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Titanium Oxide For High-Density Optical Storage

Stoobalou and other readers sent along word of research out of Japan, using a new crystal form of titanium oxide for high-density data storage — promising discs that store 1,000 times more data than Blu-ray does today, up to 25 TB. The material transforms from a black-colored metal state that conducts electricity into a brown semiconductor when hit by light, at room temperature. Titanium oxide's market price is about one-hundredth that of the rare element that is currently used in rewritable Blu-ray discs and DVDs. The material is cheap and safe, and is already being used in many products ranging from face powder to white paint. The researchers successfully created the material in particles measuring as small as 5 nanometers in diameter.

30 of 172 comments (clear)

  1. Re:Conductive properties by Tapewolf · · Score: 2, Interesting

    This state change also changes its reflectivity, similar to how a CD-RW works.

  2. Slashdotted, Coral cache link by TeknoHog · · Score: 5, Informative
    --
    Escher was the first MC and Giger invented the HR department.
  3. Good for archival purposes? by pegasustonans · · Score: 4, Insightful

    Are there any projections/estimates related to how stable this media would be when used for long-term archival storage?

    --
    And all our yesterdays have lighted fools The way to dusty death. --Will
    1. Re:Good for archival purposes? by Thanshin · · Score: 4, Interesting

      I admit having no idea about the answer to that very interesting question but the fact that the surface changes "when hit by light, at room temperature" makes me suspect it doesn't have much chance on that front.

      We need a disk that can only be writen by divine intervention at Hell's main furnace, temperature.

    2. Re:Good for archival purposes? by martijnd · · Score: 2, Funny

      Just put into a light sealed box -- bit like a hard disk today.

      Oh, that was too simple a solution? I am sure we can think of something more complicated.

    3. Re:Good for archival purposes? by Vekseid · · Score: 4, Interesting

      Titanium dioxide itself is ridiculously stable. It's what makes it so safe - we use it to whiten marshmallows for crying out loud. How stable the structure is is an open question though, it doesn't say what frequency or intensity of light.

    4. Re:Good for archival purposes? by WrongSizeGlass · · Score: 2, Funny

      I admit having no idea about the answer to that very interesting question but the fact that the surface changes "when hit by light, at room temperature" makes me suspect it doesn't have much chance on that front.

      I bet it would last at least as long as thermal fax paper.

    5. Re:Good for archival purposes? by Anonymous Coward · · Score: 3, Funny

      Titanium dioxide itself is ridiculously stable. It's what makes it so safe - we use it to whiten marshmallows for crying out loud.

      Are you saying I could store my entire porn collection on marshmallows?

    6. Re:Good for archival purposes? by Anonymous Coward · · Score: 5, Funny

      Are you saying I could store my entire porn collection on marshmallows?

      Isn't your porn collection sticky enough already?

    7. Re:Good for archival purposes? by MichaelSmith · · Score: 2, Insightful

      Titanium dioxide itself is ridiculously stable. It's what makes it so safe - we use it to whiten marshmallows for crying out loud.

      Are you saying I could store my entire porn collection on marshmallows?

      Not with me around. Mmmm forbidden marshmallows.

    8. Re:Good for archival purposes? by tom17 · · Score: 2, Insightful

      If the cops come round cos of all your porn, you could just eat the evidence!

    9. Re:Good for archival purposes? by vegiVamp · · Score: 3, Funny

      Gah. For a moment, there, I thought you were referring to the other respondent's "Isn't your porn collection sticky enough already?".

      I'm off to buy some steel wool for my brain scrubbing, now.

      --
      What a depressingly stupid machine.
    10. Re:Good for archival purposes? by Culture20 · · Score: 5, Funny

      Are there any projections/estimates related to how stable this media would be when used for long-term archival storage?

      If the state changes in light, then there are some rules to follow:

      1. No bright light
      2. Don't get them wet
      3. Never feed them after midnight, no matter how much they beg
    11. Re:Good for archival purposes? by Megaweapon · · Score: 4, Funny

      We need a disk that can only be writen by divine intervention at Hell's main furnace, temperature.

      That would be "The Matrix: Revolutions" special edition BluRay with extended director's apology voice track.

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    12. Re:Good for archival purposes? by Yvan256 · · Score: 2, Insightful

      The one day I don't have mod points...

    13. Re:Good for archival purposes? by eharvill · · Score: 2, Insightful

      Somebody wastes theirs on you...

      --
      At night I drink myself to sleep and pretend I don't care that you're not here with me
  4. Finally! by sosume · · Score: 2, Funny

    I have been waiting for affordable removable storage in the TB size range for many years now! There's a giant p0^H^H document library waiting on my NAS to be archived ...

  5. Won't see 1000x for a few years. by w0mprat · · Score: 3, Interesting

    The full 1000x potential won't be extracted straight away, we may see this technology in the next generation x2 or x5 the density. Now that Big Content has found a reason for more capacity with 3D, and a reason to make your existing movie collection obsolete, they will be looking for the sucessor for blu-ray 3-4 years down the track (because honestly it hasn't taken over from DVDs yet).

    Interestingly in CD-ROM's heyday it wasn't uncommon for a PC to have a smaller hard drive than the amount of data that would fit on a CD-ROM. About the time DVD-ROMs were out I suppose hard drives were only a little larger. Blue-rays were fraction the size of a hard drive when the format spec was finalized (2005). Now hard drives are 20-40x larger than a blu-ray disc.

    Carelessly extrapolating from the trend I predict we might not see this technology in widespread use until a common consumer hard drive is past the 25TB mark.

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    1. Re:Won't see 1000x for a few years. by chronosan · · Score: 2, Funny

      Go go personal anecdote, I had a 486SX33 with 24MB RAM 210MB HDD and 4xCDROM drive.

    2. Re:Won't see 1000x for a few years. by PopeRatzo · · Score: 2, Funny

      Better than 3D:

      With the labor market, we could just hire people to come and act out the movie for us. Call it "RealLife-O-Vision".

      I patented the idea, in case you're wondering.

      --
      You are welcome on my lawn.
    3. Re:Won't see 1000x for a few years. by mr_mischief · · Score: 2, Interesting

      I have a 286 @ 20MHz with 1 MB of RAM, a 40 MB hard drive, SB 16, EGA, both 3.5" HD (1.44 MB) and 5.25" HD (1.2 MB) and a 2x CDROM. The whole system still works. Ken's Labyrinth rocks!

  6. Titanium dioxide? by AliasMarlowe · · Score: 5, Informative

    TFA and TFS both refer to "Titanium oxide" which typically means either TiO or Ti2O3 (Ti in either II or III states). However, both TFS and TFA also assert that the "Titanium oxide" is used in sunscreen and suchlike, which implies it is Titanium dioxide, TiO2 (Ti in IV state), not Titanium oxide.
    Most likely, TFA should have referred to Titanium dioxide, as this is also a semiconductor in crystalline state.

    --
    Those who can make you believe absurdities can make you commit atrocities. - Voltaire
    1. Re:Titanium dioxide? by NewToNix · · Score: 5, Informative
      A better description is simply 'a Titanium metal oxide' - the phase shift is between Ti3O5 and -Ti3O5. http://www.nature.com/nchem/journal/vaop/ncurrent/abs/nchem.670.html/

      "This is the first demonstration of a photorewritable phenomenon at room temperature in a metal oxide. -Ti3O5 satisfies the operation conditions required for a practical optical storage system (operational temperature, writing data by short wavelength light and the appropriate threshold laser power)."

  7. Something's not right by yanagasawa · · Score: 3, Informative

    Titanium oxide isn't used for pigments - titanium dioxide is.

  8. Light? Daylight will ruin your data? by gb7djk · · Score: 2, Interesting

    One wonders how light stable this system will be compared to existing DVD coatings. My suspicions would suggest that it may be worse.

  9. 20 years away? by slackarse · · Score: 3, Insightful

    Buh. After reading about terrabit cube storage in 1994 http://bit.ly/cf4ufr [new scientist], I didn't upgrade my 3.5" floppies for years ... now I'm old, cynical about every article like this and my removable storage devices don't go past 32GB.

    --
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  10. One thing missing though: by Hurricane78 · · Score: 5, Insightful

    The point.

    Why again do we need another slow optical disc medium? The times of those are clearly over.
    Until that thing comes out, USB sticks are going to be 25 TB too. And much smaller. And not prone to scratching, sunlight, bending, dust, etc. And for everything else there is HDDs/SSDs.

    --
    Any sufficiently advanced intelligence is indistinguishable from stupidity.
  11. Re:Titanium Oxide is a CHEMTRAIL airborn dispersan by Anonymous Coward · · Score: 2, Insightful

    Of all the conspiracy theories this one confuses me the most.

    It displays a fundamental lack of understanding in both physics and meteorology. High altitude chemical spray is quite simply the the worst possible, if not impossible, way to disperse fluids. First off the winds aloft are different at 3K feet. At 10K-30K they are significantly stronger and can be in a different direction than on the group. Plus there the problem that the fluid would likely evaporate before reaching the ground. Another problem is that you couldn't fit enough "product" on a plane to cover any significant area.

    Also the infrastructure required to perform "chemtrails" is insane. It would require the cooperation of at least the following groups of people.

    Aircraft design companies
    Aircraft manufacturing companies
    FAA
    Pilots
    Airline companies
    Airport ground crews
    Chemical design engineers
    Chemical manufacturing companies
    Delivery companies

    Yet somehow all these diverse groups can work together with no leaks or mistakes. I guess what amazes me most is the super human abilities attributed to the government.

  12. Re:If it isn't fire, it's ice by Thanshin · · Score: 2, Insightful

    we could just hire people to come and act out the movie for us.

    It will never work out. The special effects explosions in action movies are hell on the furniture.

    Worse still were the neighbors complaints after the snow scenes

    My dear sirs. If I may raise a point in favour of this new technology:

    Porn.

    That will be all.

  13. Re:Titanium Oxide is a CHEMTRAIL airborn dispersan by jacks0n · · Score: 2, Funny

    Obviously the government couldn't be behind it, but What about the Boy Sprouts or the Gnomes of Zurich?