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GE claims data storage breakthrough with 100 DVDs on one disc
Published in Saudi Press Agency on 27 - 04 - 2009


General Electric has achieved a breakthrough
in digital storage technology, using holographic images to allow
standard-size discs to hold the equivalent of 100 DVDs, the company
announced Monday, according to dpa.
The storage advance is only a laboratory success at this stage but
researchers said that the technology has passed critical thresholds
that will make it transferrable to commercial and consumer
applications.
The new system stores digital information in holographic light
patterns that are read by miniscule lasers. Work on storing data in
holographs has been underway for decades and the GE breakthrough
involved finding the materials and techniques to enable smaller
holograms to reflect enough light for their data patterns to be
detected and retrieved by standard equipment.
The GE researchers achieved a 200-fold increase in the reflective
power of their holograms, which allows them to be read by current
Blu-ray machines, said lead scientist Brian Lawrence in a blog
posting Monday.
That could lead to the development of a machine that could read
the so called "microholographic storage discs" as well as CD, DVD and
Blu-ray discs. The holographic discs could hold 500 gigabytes of
data, compared to the Blu-ray capacity of 50-gigabyte discs, and a
standard DVD capacity of 5 gigabytes.
"If this can really be done, then GE's work promises to be a huge
advantage in commercializing holographic storage technology," Bert
Hesselink, an optical storage expert at Stanford University, told The
New York Times.
GE said it expects to first market the technology to movie
studios, television networks, medical researchers and hospitals for
holding data-intensive images like Hollywood films and brain scans.
But the company is already talking with major electronics and optical
storage producers with the goal of accessing the broader corporate
and consumer market.


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