TAG | Today's Blu-ray almost obsolete as Pioneer demos 400GB disc! |
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| by Alex Zaharov-Reutt | |
| Tuesday, 08 July 2008 | |
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Page 1 of 3 But with 400GB at your disposal, the 25GB and 50GB storage capacities of today’s Blu-ray discs look tiny in comparison, and if 16-layer discs can be created, how long will it be before Pioneer learns how to squeeze 32 layers or even 64 onto the same thin piece of plastic? Pioneer says in its press release that it has achieved a “world first”, and that its confidence in the feasibility of making this technology on a commercial basis has been “bolstered”, as they point to the obvious need for ways to store ever more data. But making this breakthrough hasn’t been easy, and they’ve clearly been trying for some time. Pioneer explains that one of the problems for “multilayer optical discs” in the past has been the difficulty of obtaining “clear signals from each recording layer in a stable manner due to crosstalk from adjacent layers and transmission loss.” Essentially this means that previous attempts saw the layers interfere with each other, thus rendering the disc pretty useless. However thanks to “optical disc production technology” that Pioneer says it has developed in the DVD field, the problem was solved by, “among other things, using a disc structure that can reduce crosstalk from adjacent layers, resulting in a 16-layer optical disc that can playback high-quality signals from every layer.” Ah, for every problem there is a solution! And the answer to finding it – or any problem – lies between our ears. So how precisely did Pioneer solve the multi-layer problem? Please read on to page 2. |
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