HD DVD

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HD DVD

(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, HD DVD gave way to Blu-ray within a few years.

Based on the Advanced Optical Disc (AOD) technology from Toshiba and NEC, HD DVD used a blue-violet laser that read pits half the size of a DVD on tracks more tightly packed. 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
HD DVD-ROMs were pressed for commercial movies, while HD DVD-Rs were recorded once by the user and HD DVD-RWs were rewritable. A few dual-format HD DVD/Blu-ray players were developed, and hybrid HD DVD/DVD discs were planned. See Blu-ray, 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 ?
In addition, the SACD layer in hybrid discs contains the industry's most powerful content protection, utilizing cutting-edge encryption technologies.
It's available on this SACD in its original three-channel format and in regular two-channel on a hybrid disc that can be played on an SACD or conventional CD player.
And buying the album in the new SACD edition makes sense even if you don't have an SACD player because the new two-channel transfer is still superb, maybe a notch better than the earlier one; the hybrid disc is only a few dollars more than the regular issue; and, who knows, you might buy an SACD player some day, and you'll be all prepared.
Interestingly, too, the music is being issued by DHM in both an SACD hybrid disc (double layered, two-channel and five-channel) and a regular stereo disc.
A Second layer on the hybrid disc contains the straight stereo format just as issued in 2000.
The patent licences from Mitsubishi Electric Corporation, Thomson Licensing, Toshiba Corporation and Warner Bros Home Entertainment (collectively, the "BD4C Licensing Group") are key to BD decoders, BD encoders, BD players, BD read-only discs, BD recordable discs, BD drives, BD/DVD hybrid discs, BD recorders and BD Products that incorporate DVD functionality, said a statement.
Hybrid discs can be selectively mounted as ISO9660 volumes, allowing Windows and Mac users to access the same disc and utilize cross-platforms such as Microsoft Word, Excel and PowerPoint documents, as well as common file formats, including PDF, EPS and JPEG.
Four companies announced today that as of 1 March 2010 they have commenced a worldwide joint licensing program for Blu-ray (BD) and DVD patents essential for BD decoders, BD encoders, BD players, BD read-only discs, BD recordable discs, BD drives, BD/DVD hybrid discs and BD recorders (BD Products), including BD Products that incorporate DVD functionality.
Hybrid discs can be selectively mounted as ISO9660 volumes, allowing Windows and Mac users to access the same disc and utilize cross-platforms such as Microsoft(a) Word(a), Excel(a) and PowerPoint(a) documents, as well as common file formats, including PDF, EPS and JPEG.
Easy-CD Pro for the Macintosh enables the creation of multitrack audio, multisession and hybrid discs, and supports both ISO 9660 and HFS file formats.
More advanced packages allow Mac/PC hybrid discs for true cross-platform portability.
Increasingly, new CD-ROM titles tend to be hybrid discs that can be utilized on both the PC and Mac.