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Pioneer Develops World's First 16-Layer 400GB Optical Disc

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Pioneer Develops World's First 16-Layer 400GB Optical Disc

Postby Ian on Mon Jul 07, 2008 11:52 am

Go Pioneer!

http://pioneer.jp/press/release193.html

Pioneer Corporation has succeeded in developing a 16-layer read-only optical disc with a capacity of 400 gigabytes for the first time in the world*1. Its per-layer capacity is 25 gigabytes, which is the same as that of a Blu-ray Disc (BD). This multilayer technology will also be applicable to multilayer recordable discs. This development has bolstered Pioneer's confidence in the feasibility of a large-capacity optical disc, which is expected to become necessary in the near future.

For multilayer optical discs, it has been difficult to obtain clear signals from each recording layer in a stable manner due to crosstalk from adjacent layers and transmission loss. Utilizing the optical disc production technology that it has developed in the DVD field, Pioneer solved these problems 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.

As for the read-out system, Pioneer achieved stability in the playback of recorded signals by employing a wide-range spherical aberration compensator and light-receiving element that can read out weak signals at a high signal-to-noise ratio in the optical pick-up mechanism. Since the optical specifications of the objective lens, such as NA (Numerical Aperture)*2, are the same as those for the existing BD discs, it is possible to maintain compatibility between the new 16-layer optical disc and the BD discs.

The 16-layer optical disc technology, capable of storing much more data than the conventional discs on one disc, will greatly reduce the number of discs to be used and therefore contribute to the conservation of resources.

Pioneer will present the details of this research at the International Symposium on Optical Memory and Optical Data Storage 2008 (ISOM/ODS2008) to be held in Hawaii from July 13.
"Blu-ray is just a bag of hurt." - Steve Jobs
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Re: Pioneer Develops World's First 16-Layer 400GB Optical Disc

Postby Dartman on Tue Jul 08, 2008 12:40 am

OOOH BOY! I just get a BD burner and now this. I'd hate to see how much this will cost considering where BD prices still are at the moment :o At least maybe this will show them time to lower cost on the soon to be obsolete technology :wink:
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Re: Pioneer Develops World's First 16-Layer 400GB Optical Disc

Postby Ian on Tue Aug 12, 2008 2:10 pm

AV Watch has posted some pictures from Pioneer's presentation at ISOM. Here's a picture of the disc (its clear?) as well as the pile of hardware they're using to read it.

http://www.watch.impress.co.jp/av/docs/ ... ioneer.htm

Pioneer 400GB BD-ROM a.jpg
Pioneer 400GB BD-ROM a.jpg (89.04 KiB) Viewed 3499 times


Pioneer 400GB Hardware a.jpg
Pioneer 400GB Hardware a.jpg (107.75 KiB) Viewed 3497 times
"Blu-ray is just a bag of hurt." - Steve Jobs
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Re: Pioneer Develops World's First 16-Layer 400GB Optical Disc

Postby Wesociety on Sun Aug 17, 2008 12:23 am

Now that's some crazy ish!
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