clipped from: discovermagazine.com   

Holographic digital storage will let consumers store a DVD library on a single disk.

How would you like to carry around your entire DVD collection on a single disk? That is the promise of a new holo­graphic digital storage technology being developed by General Electric and coming to a computer near you around 2012. Although not the first commercial holographic storage system—that honor goes to InPhase Technologies’ Tapestry™ 300r holographic drive—GE’s system could be the first one aimed at consumers. (InPhase’s holographic drives, which debuted last year, sell for $18,000 and target broadcasters who need to archive television programs.)

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Holographic media can store huge amounts of data because information is encoded in layers throughout the entire disk, not just on a single reflective surface as in today’s optical media. In GE’s system, a single CD-size disk made of plastic will be able to store about 1 terabyte of data, equivalent to 110 typical movie DVDs.