Holographic Discs

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I thought this was interesting
http://www.tgdaily.com/2006/03/27/inphase_holographic_media/
new holographic discs can hold more than a terabyte. Unfortunately the drive is blindly expensive, although the discs are pretty cheap.

Longmont (CO) - InPhase, which has promised to bring the first holographic disk drive to market later this year, has reached another milestone in the development of its storage media. The company more than doubled the storage density on its holographic disks within one year to 515 Gbit/in2 which should lead the way to DVD-sized media with well above 500 GB capacity.

With high definition audio and video around the corner, the capacity of Blu-ray and HD-DVD media isn't quite as stunning as the specifications may suggest. 50 GB Blu-ray disks - which can store about two HD movies - is simply just good enough, especially if we consider the fact that these disks aren't available yet. Organizations that need to store enormous amounts of data are likely to look elsewhere: While tape drives are likely remain the dominant solution for backing up data, holographic drives could soon become an option when data not only needs to be stored, but also instantly accessed.

the first generation of Tapestry media will be followed by a disk family ranging from 800GB to 1.6 TB capacity.

There has been no recent information on the price of the holographic disk drive generation. In April of 2005, the company told us that the drives will be priced initially around $10,000. Media will cost around $100, we were told.

Holographic disc technology! The future is going to be sick.