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TDK, a leading manufacturer of optical discs and various other electronics, has demonstrated the world's highest-capacity Blu-ray disc media to date. The disc can hold 1TB of data and consists of many recording layers. Unfortunately for TDK, it is unlikely that such media will reach mass market in foreseeable future.

At Ceatec Japan trade-show TDK showcased 1TB Blu-ray optical media that features 32 layers in total (16 per side) with each layer capable of holding of 32GB of data, reports Tech-On web-site. One of the problems associated with such multi-layer high-capacity discs is necessity to develop a material for layers with high light transmittance. TDK did not reveal which alloy it had to use. The company stressed that symbol error rate from reading from such discs is low enough for mass products. However, the data layers themselves are not compliant with Blu-ray spec.

"According to the specifications of the Blu-ray Disc, the thickness of a recording layer has to be 100μm or less. But the recording layer of the new disc is 260μm in thickness. And it causes the aberration of an optical lens," a spokesperson for TDK is reported to have said.

TDK hopes that the  expects that the new optical disc will eventually be used as a home-use recording medium, a backup medium and a medium for a broadcasting service.

TDK and Pioneer are the two companies, who consistently demonstrate large-capacity non-standard Blu-ray disc media. Pioneer Corp. said in mid-2008 that it had succeeded in developing a 16-layer read-only optical disc with a capacity of 400GB for the first time in the world. Later in 2008 Pioneer also said that technology-wise it could develop a 500GB BD. TDK showcased 320GB BD media about a year ago. Unfortunately, even BD XL standard ratified earlier this year does not support capacities larger than 128GB. As a result, all the demonstrations are rather a proof of concept than a showcase of a feasible product.

Tags: Blu-ray, TDK


Comments currently: 7
Discussion started: 10/13/10 10:31:20 AM
Latest comment: 05/14/11 10:50:47 AM
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Ugh ... how sorry are we going to be because HD-DVD was killed off.... Do you think that, after all these years, HD-DVD drives would still cost 150$ for the cheapest writer and blanks 3$ or more like BluRay is ?Another mafia-like / INTEL-like strategy won against the consumer's interests
0 0 [Posted by: East17  | Date: 10/13/10 10:31:20 AM]

Bah. I'd be more interested if someone would just start making 32GB single-layer BD-R discs (I hope the standard allows for that) and get prices down to at most 2-3 US$ for small packages of 10pcs.

That would be equivalent to the transition of CDs from 74min to 80min, and at least match the CD->DVD storage increase which wasn't that great to begin with.

For a nextgen media, though, 1TB sounds good. But looking at how long it took and is taking for BD-R to displace DVD-R, who knows if that's going to happen anytime soon.

0 0 [Posted by: sanity  | Date: 10/13/10 12:17:27 PM]

Correctly reading 16 layers will probably require very expensive BD readers. I am with sanity: give us a solid 32 GB and call it a day.
0 0 [Posted by: BernardP  | Date: 10/13/10 01:53:03 PM]

this disk is 3 times too thick to fit into players due to all the layers, its a tech demo, not a real product.
0 0 [Posted by: taltamir  | Date: 10/13/10 04:42:19 PM]

2-3 US$ for small packages of 10pcs

Dreams ! Monopol = consumer's dissadvantage. If HD-DVD would have neen alive .. the prices would have been muuuch lower. I still wonder why they don't continue manufacturing HD-DVDs and blanks ... All the BD drives are HD-DVD compatible ... or, at least most of all. They'd have a pretty customer base now if they'd make HD-DVD-Writers available for 100$ and blanks 50% cheaper than the BD blanks. I think the market would really do a 180% turn where PC users are involved.
0 0 [Posted by: East17  | Date: 10/15/10 05:24:34 PM]
- collapse thread

There's no monopoly in BD any more than in HDDVD. The discs are manufactured by the same usual suspects: CMC, Ritek, Mitsubishi, Moser Baer, etc. There are multiple choices for hardware as well, and unlike media the prices on that aren't too bad already.

The main problem with BD vs. HDDVD was that the discs were a larger departure from DVD so production lines had to be retooled and discs were more expensive. But I didn't care for HDDVD. I want capacity. Going from 4.7GB to 25GB is disappointing enough, 15GB is even poorer.

BD drives don't read HDDVD as far as I know. If there were hybrids, now that HDDVD is dead there surely aren't going to be anymore.

BTW, about the price, it's not too far from that already if you're in the right country:

I don't know if LTH is less reliabile, but the market will get there eventually.

0 0 [Posted by: sanity  | Date: 10/17/10 10:03:33 AM]

Optical media technology have counted its days, analogously as the hard drives. Flash memory and SSD will be its substitutes, at least for a while.
0 0 [Posted by: perucho07  | Date: 05/14/11 10:49:42 AM]


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