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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 ?
Earlier this year, Toshiba released a pair of HD-DVD players: the HD-A1 ($499) and the HD-XA1 ($799).
19, 2003, the DVD Forum, an international organization composed of hardware, software, media, and content companies, decided that the HD-DVD will be the HDTV successor of the DVD.
Lieberfarb also said that HD-DVD is a more efficient technology that could be ready for market by 2005.
Feingold countered by calling HD-DVD ``interim technology'' which is not advanced enough to carry the industry through the next 10 years.
Providing high-definition multimedia, along with Acer's exclusive Empowering Technology and Acer Arcade entertainment software suites, the Aspire 9810 is a highly-versatile notebook that delivers best-in-class HD-DVD format viewing and an extraordinary audio-visual experience.
com currently offers a broad and growing selection of high definition televisions, players, and DVDs with an HD-DVD store at www.
Gregg Johnson, Deluxe, states, "DCA has been our key technology partner in the launch of HD-DVD and Blu-ray optical media formats.
DCA is also heavily involved in new optical disc format developments such as HD-DVD and Blu-ray.
AACS encryption for HD-DVD was enabled by DCA's new Blazer workstation.
DCA has been involved in the HD-DVD format development worldwide since September, 2003 and offers a full line of products for HD-DVD authoring, pre-mastering and mastering.
For navigation and playback of content on HD-DVD and BD discs, users will be able to use InterVideo's flagship product, WinDVD HD, to deliver the best HD DVD viewing and listening experience.