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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. >> ==^================================================================ This email was sent to: farber () cis upenn edu EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8QYL.bAeipm Or send an email to: OpenDTV-unsubscribe () topica com T O P I C A -- Register now to manage your mail! http://www.topica.com/partner/tag02/register ==^================================================================
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- IP: Microsoft lobs proprietary codec into MPEG-centric DVD market David Farber (Dec 18)