Five-Dimensional DVD Could Store 1.6 Terabytes

May 21, 2009 by alikat.

spectrum.ieee.org

“To cram more data on DVDs than the high-density Blu-ray format allows, manufacturers will have to go three-dimensional and stack data in multiple layers. Researchers at the Swinburne University of Technology, in Hawthorn, Australia, have now found a way to add two more dimensions to optical-disc recording: wavelength and polarization. The technique could pack 1.6 terabytes of data on a standard-size DVD, the researchers say—the equivalent of 30 Blu-ray discs. What’s more, it could be compatible with today’s disk-drive technology.” read more

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