[opendtv] Re: What's next for DVD? Blu-ray and HD-DVD battle for your home theater
- From: Tom Barry <trbarry@xxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Fri, 24 Jun 2005 07:41:14 -0400
That is a very good article on the next gen DVD's.
But everybody should at least be sure to skip to the Addendum at
the end, on what will maybe eventually supplant it. See:
http://www4.tomshardware.com/business/20050616/dvd_standards-07.html
Tom's Hardware sees HVD first coming out in 2007 at the earliest.
- Tom
---------------------------------------------------------
Article Info
What's next for DVD? Blu-ray and HD-DVD battle for your home theater
Created:
June 16, 2005
By:
Andy Patrizio
Category:
Business Reports
Addendum
HVD
In December 2004, six firms - CMC Magnetics Corporation, Fuji
Photo Film Co., Ltd., Nippon Paint Co., Ltd., Optware, Pulstec
Industrial Co., Ltd. and Toagosei Co., Ltd. - formed the HVD
Alliance to support the Holographic Versatile Disc (HVD). ECMA
International is considering adopting HVD as a standard.
HVD discs are expected to hold from 100 GB to one 1,000 GB (one
terabyte) of data, with an insane data transfer rate of 1 GBit/s.
Optware, which is leading the development effort, doesn't use a
single laser beam to read data. Instead, it splits the beam into 1
million narrower beams to read whole pages of data at once.
Optware's holographic recording technology stores data on the
media discs in the form of laser interference fringes. This writes
data in three dimensions and allows for one million bits of
information to be stored in each data "dot."
Even more impressive, HVD can read and write at the same time,
something optical discs can't do. Also, HVD discs don't need to
spin like DVD discs, since the laser moves and scans rather than
being held in place and having the disc spin under it. This is why
the data rate is so high. To increase their data rate, CD and DVD
drives have to spin faster, but there's a limit to how fast a disc
can be rotated before it literally flies apart. That's why CD-ROM
maxed out at 52X speed. That's simply not an issue with HVD, where
the laser moves instead of the media.
However, it will be 2007 at the earliest before HVD sees the light
of day, and then the drives will fetch $3,000. It may end up
becoming an option for computing as a means of backup and mass
storage. Stay tuned.
Jeroen Stessen wrote:
> Hello,
>
> See: http://www4.tomshardware.com/business/20050616/index.html
> (and please substitute Phillips -> Philips ...)
>
> Greetings from a tropical Nederland,
> -- Jeroen
>
> +-------------------------------+------------------------------------------+
> | From: Jeroen H. Stessen | E-mail: Jeroen.Stessen@xxxxxxxxxxx |
> | Building: SFJ-5.22 Eindhoven | Deptmt.: Philips Applied Technologies |
> | Phone: ++31.40.2732739 | Visiting & mail address: Glaslaan 2 |
> | Mobile: ++31.6.44680021 | NL 5616 LW Eindhoven, the Netherlands |
> | Pager: ++31.6.65133818 | Website: http://www.apptech.philips.com/
> |
> +-------------------------------+------------------------------------------+
>
>
>
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