Ushering In The Next Generation Optical Media
The invention of optical media is one of the most critical events in modern technology mainly because with the amount of information that is usually stored. Moreover, the discs themselves can last anyplace from twenty years to over a single hundred, depending on the format (CD-R, DVD+R, etc.) and manufacturer. New technologies are being researched, even so, that should soon supplant current formats – and two from the 3 most exciting ones involve the use of exotica like holograms and even biological material!
Referred to as HVD for Holographic Versatile Disc, this format has a demonstrated capacity of five terabytes. Regrettably, the very first devices capable of playing them back are expected to price tens of thousands of dollars, with a single disc running anyplace between just over a hundred to just under 3 hundred dollars.
Even additional intriguing, investigation scientists are developing discs coated with light-sensitive protein made from a genetically altered microbe, in theory allowing up to fifty terabytes of storage on 1 disc! Info density on these protein-coated discs would be incredibly dense as such biological material is only several nanometers wide.
Nevertheless, this analysis has been going on for nearly half a decade now and no further news seems imminent; it appears likely that work is foundering on figuring out a process to address individual protein molecules for read/write purposes. Furthermore, a new method to focus the laser possibly also needs to become developed.
A much more instantly promising technology is the rather more prosaic 5D-DVD, so named mainly because from the 5 information layers involved. This technique would seem capable of delivering ten terabytes of info, and mainly because its encoding system is very similar to that currently in use, players for it really should also be backwards-compatible with today’s discs. 5D-DVD is hoped to be commercially ready in about one more 5 to ten years’ time.
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