Friday, August 07, 2015

Preserving Our Digital Heritage

Preserving Our Digital Heritage. Barry M. Lunt, et al. IEEE. 2008.
     An early paper discussing the research in creating the M-Disc. Current storage technologies available for digital data: magnetic, optical, and solid state, have relatively short lifetimes, ranging from 5 to 30 years. Organizations aware of this problem store multiple copies of the data in multiple places, a strategy very useful where focused attention can be given to the data. But the world of consumer storage is characterized by a store and ignore mentality. The research they have been pursuing is investigate optically appropriate and chemically inert materials, then alter the material using laser irradiation, which leaves a permanent mark with high optical contrast. The recording layer is next to an adhesion layer (it is not an adhesive layer) which is a material which inherently adheres extremely well to polycarbonate. "The layers in our optical storage disc are made from materials that have withstood the test of time and are known to be capable of enduring over 1,000 years."


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1 comment:

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