Two Competing Blue-Laser-Based Formats Emerge for DTV
The emergence of two blue-laser-based formats for Digital Television, HD-DVD and Blu-ray, is sparking intense competition among tech giants. Backed by different alliances of companies, HD-DVD and Blu-ray are poised to revolutionize the way we consume digital content. HD-DVD, supported by NEC, Sanyo, and Toshiba, boasts 47 supporting companies, including Microsoft, which plans to integrate support for HD-DVD in its upcoming Longhorn operating system. On the other hand, the Blu-ray Disc Association (BDA) counts 70 or more companies among its members, including Dell, Hewlett-Packard, and Sony. Hollywood, however, remains undecided on which format to support, with a primary concern being the video and audio codecs that will be included.
Key Takeaways:
- HD-DVD is backed by 47 supporting companies, including Microsoft, which plans to integrate support for HD-DVD in its upcoming Longhorn operating system.
- Blu-ray is backed by 70 or more companies, including Dell, Hewlett-Packard, and Sony, through the Blu-ray Disc Association (BDA).
- A primary concern in the competition is the video and audio codecs that will be supported, with HD-DVD requiring three video codecs for playback devices (MPEG-2, MPEG-4, Part 10 AVC, and VC-9).
- Blu-ray has the same mandatory video codecs as HD-DVD and also includes DTS as a mandatory audio format.
- The scalability of video codecs, especially MPEG-4 and VC-9, will allow HD-DVD discs to serve up higher quality video at lower bit rates than DVD.
- Physical specifications, manufacturing, authoring tools, and release dates are among the topics covered in the specifications for both formats.
Statistics:
- 47: number of supporting companies for HD-DVD
- 70 or more: number of companies supporting Blu-ray through the Blu-ray Disc Association (BDA)
- 3: number of required video codecs for playback devices in HD-DVD (MPEG-2, MPEG-4, Part 10 AVC, and VC-9)
- 2: number of formats included as mandatory audio formats for HD-DVD playback devices
- MPEG-2: video codec included in the DVD-Video specification but not universally supported by DVD players
- Dolby and DTS: audio codecs included in the DVD-Video specification
Sources:
- Victoria Heiland (no date): "Two competing blue-laser-based formats for DTV"
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