LS-R

LS-R, or the Layer-Selection-Type Recordable Optical Disk, is the term coined by Hitachi in 2003 for a next-generation optical disc technology which allows much larger data storage densities than DVD, HD DVD or Blu-ray Disc, by allowing the use of a large number of data layers in a single disc. In previous optical disc technologies, only a relativ
Found on http://en.wikipedia.org/wiki/LS-R
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