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A DVD player is a machine that plays DVDs produced under both the DVD-Video and DVD-Audio technical standards, two different and incompatible standards. Some DVD players will also play audio CDs. DVD players are connected to a television to watch the DVD content, which could be a movie, a recorded TV show, or other content.
The DVD format, developed by Panasonic, Sony, and Toshiba, was released in 1995, and was capable of holding 4.7 GB per layer; with the first DVD players shipping on November 1, 1996, by Panasonic and Toshiba in Japan and the first DVD-ROM compatible computers being shipped on November 6 of that year by Fujitsu. [58]
Beginning in 2007, prerecorded Blu-ray and HD DVD titles ship in packages similar to but slightly smaller (18.5 mm shorter and 1 mm thinner: 135 mm × 171.5 mm × 13 mm) [31] than a standard DVD keep case, generally with the format logo prominently displayed in a horizontal stripe across the top of the case (red for HD DVD; and PlayStation 3 ...
The DVD specifications created and updated by the DVD Forum are published as so-called DVD Books (e.g. DVD-ROM Book, DVD-Audio Book, DVD-Video Book, DVD-R Book, DVD-RW Book, DVD-RAM Book, DVD-AR (Audio Recording) Book, DVD-VR (Video Recording) Book, etc.). [1] [2] [3] DVD discs are made up of two discs; normally one is blank, and the other ...
The "Rock Ridge" extension can store even longer file names and Unix/Linux-style file permissions, but is not recognized by Windows and by DVD players and similar devices that can read data discs. For cross-platform compatibility, multiple file systems can co-exist on one disc and reference the same files.
The drive treats a DVD-Video disc as any DVD-ROM disc. The player reads the disc's user-data and processes them according to the DVD-Video format. However, if the drive detects a disc that has been compiled with CSS, it denies access to logical blocks that are marked as copyrighted (§6.15.3 [4]).
It is not mandatory for DVD players to support reading the BCA, but DVD-ROM drives should, according to the Mt. Fuji specification (an industry-standard optical drive command set). [ 3 ] [ 4 ] The Burst Cutting Area cannot be written without using special equipment, therefore it can be used as a tamper-proof means of identifying individual discs.
In the history of optical storage media there have been and there are different optical disc formats with different data writing/reading speeds.. Original CD-ROM drives could read data at about 150 kB/s, 1× constant angular velocity (CAV), [1] the same speed of compact disc players without buffering.