Blu-ray capacity to increase by a third
Expansion benefits prospects for HD and 3D takeup
Blu-ray disk capacity can increase by a third because of enhanced signal processing and a new way to evaluate media quality.
Current Blu-ray disks store 25GB per layer and this can increase to 33.4GB through the use of Partial Response Maximum Likelihood (PRML) signal processing, which doesn't need any change to the existing Blu-ray laser optical system. The Tech-On newsletter reports that media quality evaluation could no longer be carried out using a jitter-based method, though. There is a relationship between error rate and jitter rate which is used in evaluating 25GB/layer media, but this relationship fails with higher-density media.
Panasonic and Sony have developed a new way of evaluating media called the i-MLSE (Maximum Likelihood Sequence Estimation) evaluation index. There is a strong correlation between the media error rate and the i-MLSE index at the 33.4GB density level. Sony is reported as believing that it will be relatively straightforward to estimate the read error rate for 33.4GB Blu-ray media using i-MLSE. Although the calculation is complex, recent hardware can run the calculations in real time, as is done with jitter-based evaluation methods.
Existing Blu-ray players and burners would need, it's said, a firmware update to deal with any forthcoming 33.4GB Blu-ray media.
Sony is proposing that the Blu-ray Disc Association endorses the adoption of i-MLSE and hopes that it will become a standard. The increased capacity of Blu-ray media will help with the storage demands of 3D movies such as Avatar. Sony is planning a line of 3D televisions, which ties in with the whole idea that 3D technology will strengthen sales of high-definition televisions, disks and media drives.
For example, it has announced the BDV-HZ970W home theatre system at CES, which includes an integrated 3D Blu-ray player. It has also announced a standalone 3D Blu-ray player, the BDP-S770, which should be available in the summer. It will probably require a new HDMI cable to connect to a new 3D-capable high definition TV.
We might estimate that 2011 would be the year for the start of any significant adoption by consumers of 3D-capable Blu-ray. This is because of the need for a 3D Blu-ray disk standard, the purchase of 3D-capable TVs, and the availability of a sufficient number of 3D movies on Blu-ray disks.
Separately, Blu-ray disk manufacturer Ritek, based in Taiwan, which had a manufacturing capacity of 2m disks per month in December, says that if demand growth continues it will increase that to 4m or even 6m per month this year. ®
Anyone tested the market?
...erm... only a small handful of my friends and work colleagues have blu-ray, and an equally small group actually believe that 3D films are worth the hype. The cross-over is, understandably, even smaller. I lost sight of the relative purchase rates of DVD and blu-ray after Toshiba dropped out of the HD format war, so I'm not sure that my experience is typical.
I don't see any large-scale interest in blu-ray, and personally I have zero enthusiasm for 3D telly. I'm sorry, but I just don't see the market here. I think it is compounded by the fact that you can't really upscale or 3Dify the old films that would warrant the effort, and the overwhelming majority of recent films are either complete dross or just not remarkable/distinctive enough to buy once they are released.
So, who's going to buy? And why?
it's still going to be over priced. They should go straight to 50Gb and cut the price by half, then people might start to be interested.
I don't know a single geek with blueray!
are two Sony products that failed, not because they lost out to a rival format but because there simply wasn't a demand.
BluRay and 3D-TV are two more roadmaps that lead no-where.
RE: sucessfull sony formats
So, of the successful formats, the following are the ones that were successful for consumers and not co-developed (multiple manufacturers provides some price competition):
- MiniDisc (at least in Japan)
- maybe PS3 as a combined BluRay/games console
The fundemental problem with BluRay and it's constant updates is that their is still really no mainstream uptake of BluRay. Sure, some people are buying it and upgrading their TV's to HD ready units is helping, but the improved content comes at a step cost (IMHO) and that is holding back demand.
99% of the consumers watching movies don't care if their movie is slightly poorer quality on a 4.7GB DVD than on a 25/33/whateverGB BluRay disk if the DVD is half the price.
And if a pirated DVD is half the price and half the quality again from a dodgy bloke in a pub, they'll take that...
Only one focus point. Real 3D has as many as the Z resolution
Needs two working eyes. Real 3D works with one eye.
Stereoscopic TV doesn't work for almost 20% of people. It causes headaches in many because the focus distance is the screen. Always.
Real 3D changes view with head Movement.
This Stereoscopic TV is a misuse of the word 3D. Boycott it till they advertise it honestly.