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IP: Microsoft lobs proprietary codec into MPEG-centric DVD market


From: David Farber <dave () farber net>
Date: Tue, 18 Dec 2001 09:53:35 -0500


To: OpenDTV Mail List <openDTV () topica com>
From: Craig Birkmaier <craig () pcube com>

Microsoft lobs proprietary codec into MPEG-centric DVD market
December 18, 2001 12:00am
Source: CMP Media Inc.

ELECTRONIC ENGINEERING TIMES: New York - The consumer business has
been bracing for an assault, and last week it got one. Microsoft
Corp. lobbed a proprietary encoding technique into the competition
for next-generation DVD players, roiling an industry that has
coalesced around MPEG standards for that job.

At the Internet World conference here, Microsoft previewed a
technology, code-named Corona, that can encode high-definition video
at 24 frames per second, at a compression ratio superior to MPEG-2.
The PC software giant has recruited a number of backers among
Hollywood studios looking for a new way to encode content and achieve
more-robust copy protection for upcoming high-definition (HD) DVD
systems.

The company said this new version of Windows Media, set for release
next year, will enable high-quality movie streaming over the Web.
Besides packing HD video on a DVD, it will offer disk and player
makers an alternative to costly blue-laser technology in HD-DVD
machines.

A DVD Forum working group, meeting this week in Japan, will
scrutinize the technology and several other codecs as it explores
encoding schemes for the coming HD-DVD specification.

Unnerved Japanese consumer electronics vendors are calling Corona a
Trojan horse attempt to overtake the HD-DVD design, which was
expected to be built around the blue-laser technology in which
they've invested for years. While a blue laser could use MPEG-2
encoding to cram 9 Gbytes of high-definition content onto a two-layer
DVD, Corona has the same capacity without a shift to blue-laser
technology.

Corona's Windows Media Professional codec can play a 24-bit,
5.1-channel surround-sound file over an Internet Protocol connection
at a 96-kHz sampling rate. A new Fast Stream feature eliminates the
buffering of streaming audio and video files on a broadband
connection, giving users what Microsoft called an "instant-on"
experience and enabling them to channel surf between Web streams.

A new video codec would boost performance 20 percent over
current-generation versions, and would allow playback of
high-definition 720 x 1,280-pixel progressive-scan video at 24
frames/s, said Will Poole, vice president of Microsoft's Windows
Digital Media Division. With Corona's coding efficiency, "studios
could put all the Godfather movies or a musician's entire discography
on a single CD," Poole said.

Industry observers raised some flags over Microsoft's approach,
however. A movie executive, who spoke on condition of anonymity, said
some DVD Forum members would like to see MPEG-2 continue for
encoding, and noted that a complete switch to blue-laser technology
would involve a "very costly" overhaul of disk manufacturing,
resulting in more expensive disks.

Encoding improvements

"Our view is that encoding improvements [in existing technology]
could deliver an HD-DVD visual experience on a DVD-9," or a
dual-layer DVD disk with a 9-Gbyte capacity, the executive said.
"We've been encouraging Microsoft and a few others [including MPEG-4
codec players] to attain these encoding goals."

The target bit rate for offering HD-DVD content on a DVD-9 disk is
about 7 Mbits/s. Corona is said to be capable of providing HD-quality
video at a bit rate between 3.5 and 9 Mbits/s.

Jonathan Usher, group manager of the Windows Digital Media Division,
claimed Microsoft has "massive support for Corona from content
owners." That's because Corona is "the only one" offering what Usher
called "a magic combination" of efficient coding; security, in the
form of digital rights management; and reach: 350 million Windows
Media Player users.

Despite some obvious advantages, several sources in studios and the
consumer industry remained suspicious. Some termed Corona, especially
applied to the DVD platform, "Microsoft's latest bid" to establish a
beachhead in the consumer electronics market. "The question you'd
have to ask yourself is whether you want to lock yourself into one
solution offered by Microsoft-whether a coding scheme or a digital
management system-forever," a source said.

Rob Koenen, president of the MPEG-4 Industry Forum, said that
different profiles of MPEG-4 can provide 1,920 x 1,080-pixel
resolution for both progressive and interlaced video at up to 60
frames/s. The Advanced Coding Efficiency and Main profiles "are both
geared toward HD applications," he said, and the forum's decision to
incorporate the H.26L video compression algorithm into the spec will
greatly improve coding efficiency.

Several studios have reportedly released some of their content to
Microsoft to see how well Corona can encode it."That's not to say
that we've decided on Corona," said one studio source.

Other codecs under review for HD-DVD include several newly improved
MPEG-4 encoders, wavelet-based encoding schemes and discrete cosine
transform-based codecs such as H.26L.

"The hold-up for HD-DVD is not so much the blue laser, but the lack
of copy protection systems," said Michelle Abraham, senior analyst
for multimedia at Cahners' In-Stat Group (Scottsdale, Ariz.). She
expressed doubts that the HD-DVD spec can be standardized before 2005.

In the meantime, global DVD player sales are booming. Not counting
game consoles that offer software-based DVD playback, 29 million
units of DVD players will have shipped this year, Abraham said.
Player sales will continue to grow, to 41 million units in 2002 and
52 million units in 2003, she projected.

One of the biggest obstacles Corona faces is copy protection, a deal
breaker for Hollywood studios reluctant to target first-run content
for delivery to PCs. Acknowledging that there is no such thing as a
fool-proof encryption scheme, security experts said the industry
needs technologies that not only prevent copyrighted material from
theft, but also detect burglars and respond to alarms. "We are not
just concerned about the quality of copy protection systems," said
Alan Bell, senior vice president, technology, at Warner Bros.
(Burbank, Calif.). "We are also concerned with the response time it
takes to revoke the access rights once the copy protection system is
broken."

Smoldering debate

The advent of Corona has meanwhile ignited a long-smoldering debate
in the consumer industry about whether proprietary solutions should
have a place in digital consumer products.

Yet in targeting the DVD platform, Microsoft might accidentally fall
into the hardware-based business models that have trapped the
consumer industry for years, some observers said. Once a codec is
tied to a consumer platform, "You need to freeze the standard," said
MPEG-4 Forum's Koenen. "You can't upgrade your software every month
for DVD players," as you can for PCs. In contrast, MPEG-4 could
provide system vendors an evolutionary path for the next generation
of codecs that many companies will explore and enhance.

"The interest in MPEG-4 support exists all over Japan, and H.26L has
been talked about a lot," said Tim Vehling, senior director of
marketing for consumer products at LSI Logic Corp. "Corona has been
discussed as well."

Licensing issues may add risk to those embracing Corona. Despite a
widespread assumption that Microsoft will be doling out Corona free
of charge, some technology executives at studios suspected that 80
percent of Microsoft's underlying Windows Media video codec may be
based on MPEG-4 technologies. Although Microsoft is one of the 19
essential patent holders for MPEG-4 video codec, an executive said,
"Windows Media could well be violating MPEG-4 patents."

http://www.eetimes.com/

Copyright c 2001 CMP Media LLC

By Junko Yoshida and Rick Merritt

<<ELECTRONIC ENGINEERING TIMES -- 12-17-01, p. PG1>>

<< Copyright ©2001 CMP Media Inc. >>

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