Two new blue-laser HD-DVD formats has been announced
Posted on 26/03/03 10:58 by
Johnny
The Industrial Technology Research Institute (ITRI) of Taiwan together with 28 companies has established the Advanced Optical Storage Research Alliance (AOSRA) whose purpose is to gain control of the intellectual property for the next-generation of blue-laser HD-DVD formats. The new formats will be physically similar to the formats that already exist (Toshiba/NECs format and Blu-Ray) but will use their own proprietary compression, error correction and file formats to avoid infringing of patents.
| Taiwanese companies hold 50 percent of the world
market for CD-ROM drives and 40 percent of the market for DVD-ROM drives,
said Der Ray Huang, deputy general director of ITRI and director general
of AOSRA. But most of the associated IP "is owned by European and Japanese
companies, [and] Taiwanese companies have to pay royalties to those
companies," Huang said. "The purpose of AOSRA is to invent IP for new
formats." Properties of the new HD-DVD formats | HD-DVD-1 | HD-DVD-2 | | Disk diameter | 120 mm | 120 mm | | Substrate thickness | 0.6 mm x 2 | 1.2 mm* | | Laser wavelength | 405 nm | 405 nm | | Lens numerical aperture | 0.6~0.65 | 0.85 | | Track pitch | 0.41 µm | 0.33 µm | | Minimum pit length | 0.222 µm | 0.176 µm | | Data transfer rate | 25.0 Mbps | 31.6 Mbps | | User data capacity | 17 Gb | 27 Gb | | Recording | Groove recording | Groove recording | *(protection layer 0.1 mm) |
With a total of four competing technologies it looks like the struggle for the next-generation of HD-DVD formats will be even tougher than today's fight about the recordable DVD formats. You can read more about the new blue-laser formats at EE times.
Source: EE Times
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Reactions
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By
Smabbage,
Wednesday 26 March 2003 13:51
Shoot! If they can't come up with a standard for DVD that everyone accepts, how the heck do they expect to come up with a standard for Blu-Ray? DVD has 2 competing standards and now we have 4 competing standards for Blu-Ray. :P
By
nOZ,
Wednesday 26 March 2003 21:09
Smabbage is right. I mean, how many formats do we need? Just one, which ever is the one that everyone uses should be the standard. Just like VHS over Betamax. We don't need all these extra formats that only leads to confusion. If you can't choose a standard by looking at how many people uses A over B, then the one that has the best compatibility and expandability (whether it be increased storage capacity, better error checking and correction, etc...) should be chosen. Why is that so hard?
[edited by nOZ on 26.03.2003 21:10]
You standard freaks forget that competition is a good thing and that it allows the consumer to make the choice and NOT the manufacters.
We had the choice between VHS and Beta and we choose VHS.
Now there are two DVD formats and I like plus format better although the minus format is still a little cheaper.
By
NeoRonin,
Thursday 27 March 2003 02:22
I am not to fussed about the competing standards, what i am fussed about is quality of the discs that will be used. I still have problems with the quality of the discs for dvd burning.
By
icepax,
Saturday 29 March 2003 11:13
Oh well, DVD format for now. Wait another 6-12 months and see what Blu-Ray has to offer. Unless you need to back up a lot of data (like music and movie files) then the old hard disk and dvd will be good for now...
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