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Microsoft and Warner Bros. debut glass-based future of movie archiving

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In a technological advancement normally reserved for science fiction, Microsoft has teamed up with Warner Bros. to successfully store and retrieve an entire copy of the 1976 classic Superman: The Movie on a coaster-sized piece of glass using the Redmond company’s Project Silica storage solution. 

Demonstrated as a proof of concept, Project Silica uses “ultrafast laser optics and artificial intelligence to store data in quartz glass,” as explained at Microsoft’s Ignite 2019 keynote.

According to the company’s Innovation Stories blog, “A laser encodes data in glass by creating layers of three-dimensional nanoscale gratings and deformations at various depths and angles.” A 2mm-thick piece of glass is able to hold around 100 layers of these gratings, also known as ‘voxels’ – the 3D equivalent of pixels.

Polarized light is then passed through the glass, which is decoded and read back using machine learning algorithms.

Super storage

Proving almost as indestructible as Superman himself, Microsoft’s hard silica glass survived being boiled, scratched, scoured, demagnetized, microwaved, baked in an oven and more with not a single instance of data loss recorded.

In an effort to safeguard its huge library of historic films (both celluloid and digital), radio shows, TV shows, animated shorts, dailies and more, Warner Bros. approached Microsoft upon learning of its glass-based storage technology.

“For years, they had searched for a storage technology that could last hundreds of years, withstand floods or solar flares and that doesn’t require being kept at a certain temperature or need constant refreshing,” said Jennifer Langston of Microsoft.

Preservation

Project Silica

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Warner’s Brad Collar and Vicky Colf show the difference in size between huge film canisters and Project Silica’s glass-based storage.

(Image credit: Jonathan Banks / Microsoft)

This is particularly important when it comes to the preservation of digitally-shot movies, which are typically archived by repeatedly copying and moving files across magnetic drives every few years. 

Additionally, studios will also back up their movies by creating a third archival copy on analog film which is split into three color components and transferred onto black and white film negatives to avoid color fading – a process that’s as expensive as it is convoluted.

“When we shoot something digitally — with zeros and ones representing the pixels on the screen ­— and print that to an analog medium called film, you destroy the original pixel values. And, sure, it looks pretty good, but it’s not reversible,” said Brad Collar, senior vice president of Warner Bros.

Of course, the Project Silica’s glass-based storage is still in the proof of concept phase as of right now, however Microsoft Azure’s chief technology officer Mark Russinovich is confident about the technology’s future. “I’m not saying all of the questions have been fully answered, but it looks like we’re now in a phase where we’re working on refinement and experimentation, rather asking the question ‘can we do it?’”

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