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[em]

An ongoing problem with HVD technology has been that the writing process was causing the substrate to shrink by about 0.23%, resulting in distortion of the stored data during the reading process. However, a team at the University of California has now developed larger molecules of polymer on which the holographic data is written. As a result, there are fewer molecules needed to represent the data and therefore, less bonds between them (resulting in more accurate reading). It is claimed that this reduces distortion to 0.04%. 

http://www.newscient...ref=online-news

Two of the leading companies in HVD development, Optware and InPhase, should benefit from this latest development. Optware developed the collinear method, a writing process where the information beam and the reference beam (the two laser beams used in HVD writing) are co-axially aligned. Optware claims that this requires a less complex optical system, therefore enabling a smaller optical pick up better suited to project studio use. InPhase continues to use the traditional process of sending the reference beam and the information beam on different axes.

http://electronics.h...ks.com/hvd2.htm

Both companies make claims that their process is top quality, however, both companies have kept the public at arms length regarding technical information about their products due to ongoing attempts to improve writing/reading accuracy (which may bring the high cost of HVD into question). Perhaps this latest development will create better consumer confidence in HVD.

[Spectrum]

Yeah, pretty insane stuff.

Soon we'll be able to store the whole internet on a disc, shove it into our back pocket...

...sit down on a park bench <crack!!> and it'll be gone! :wtf: