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(1) See also HD DVR.

(2) (High Definition DVD) A short-lived, high-capacity optical disc that held four hours of HD video on a single-sided, single-layer 15GB disk. Sanctioned by the DVD Forum in 2003, it gave way to Blu-ray in 2008.

HD DVD was based on the Advanced Optical Disc (AOD) technology from Toshiba and NEC and used a blue-violet laser that read pits half the size of a DVD on tracks packed tighter together. Like Blu-ray, HD DVD supported 1080p resolution and advanced video codecs (see H.264 and VC-1). An advantage for media manufacturers was that, unlike Blu-ray, traditional DVD stamping machines needed only minor modifications to make HD DVDs.

The first HD DVD drives were sold in the U.S. in 2006, and Microsoft offered the drive as an Xbox option. Despite its features and support, in 2008, the majority of movie studios and retail outlets chose Blu-ray over HD DVD, and the "format war" was over.

HD DVD Formats
Used for commercial movies, HD DVD-ROMs were pressed and read only. HD DVD-Rs were recorded once by the user, and HD DVD-RWs were rewritable. Hybrid HD DVDs were announced with HD DVD on one side and DVD on the other. In an attempt to resolve competition, dual-format HD DVD/Blu-ray players were also developed (see "Blu-ray History" in Blu-ray). See HD formats, DVD and DTV.

FULL-SIZE HD DVD (120mm) CAPACITIESSINGLE SIDED     DOUBLE SIDED HD                HDLayers  Storage  Hours    Storage  HoursSingle15GB    4       30GB     8

 Dual      30GB    8

 Triple    51GB   14
References in periodicals archive ?
HD DVD was touted as being cheaper because it was more similar to previous video technology, while Blu-ray boasted bigger recording capacity than HD DVD.
Taking the holiday season sales based on promotional prices into full consideration, these new manufacturer's suggested retail prices (MSRP) are designed to meet the potential demand for HD DVD players in the U.
To this point, Toshiba's HD DVD players received several Editor's Choice and Product of the Year awards from respected media outlets, including Sound & Vision, Electronic House, E-Gear, and Ultimate AV.
The authoring process for HD DVD is more complex and expensive than the process for standard DVD, and as with any new technology, it can require a lot of time and resources," said John Harrington, CEO of NetBlender.
HD DVD titles with advanced interactivity will take advantage of HD DVD's mandatory specifications for network connectivity, secondary video decoders and persistent storage.
Sony is in the process of buying Metro-Goldwyn-Mayer and its vast library of movie titles, so some insiders said HD DVD has not delivered a knockout blow to Blu-ray.
The American Gangster HD DVD delivers amazing features using Microsoft's HDi[TM] technology.
As it has become established in the market, HD DVD has delivered on the promise of next generation entertainment in the home, which has led to the expansion of high definition in all areas of the consumer experience.
The numbers are clear -- HD DVD is steadily gaining momentum and market share," said Ken Graffeo, executive vice president of HD strategic marketing for Universal Studios Home Entertainment, and co-president of the HD DVD Promotional Group.
GE[pounds sterling]TERSLOH, Germany, January 9 /PRNewswire/ -- Sonopress, a subsidiary of the arvato storage media group, has joined the HD DVD Promotion Group.
Company's HD DVD Lineup Features Starting Price of $899; New Qosmio World's First Notebook with HD DVD-R/RW Drive
4 /PRNewswire/ -- The companies of the HD DVD Promotional Group today issued a statement in response to the decision by Warner Home Video to exclusively back the Blu-ray format: