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Discs using the DVD-Video specification require a DVD drive and an MPEG-2 decoder (e.g., a DVD player, or a computer DVD drive with a software DVD player). Commercial DVD movies are encoded using a combination of MPEG-2 compressed video and audio of varying formats (often multi-channel formats as described below).
DVD authoring software must conform to the specifications set by the DVD Forum. DVD authoring is the second step in the process of producing finished DVDs. The first step is the creation of the movie (or programme) and the second, the authoring, is the creation of artwork, user menus, insertion of chapter points, overdubs/commentaries, setting ...
On a DVD, each track is called a title, because it is intended to hold a single movie title, or episode of a TV series. Extra content and bonus features on a DVD are also on separate tracks or titles. The sub-track index is called a chapter, like a chapter in a book.
On HD DVD, DD+ is used to encode all channels (up to 7.1), and no legacy DD track is required since all HD DVD players are required to decode DD+. ^ e On PAL DVDs, 24 frame per second content is stored as 50 interlaced frames per second and gets replayed 4% faster. This process can be reversed to retrieve the original 24 frame per second content.
The supported UDF versions for usage as a live file system are UDF 1.50, UDF 2.00, UDF 2.01, UDF 2.50 for CD-R, CD-RW, DVD±R, DVD±RW and BD-RE, and UDF 2.60 for BD-R. [ 3 ] [ a ] However even if UDF 1.50 and above can be read, only the plain UDF build may be supported and not necessarily either the VAT or Spared UDF builds required for full ...
DVD-Video is a standard for distributing video/audio content on DVD media. The format went on sale in Japan on November 1, 1996, [4] in the United States on March 24, 1997, to line up with the 69th Academy Awards that day; [6] in Canada, Central America, and Indonesia later in 1997; and in Europe, [8] Australia, and Africa in
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VOB files may be accompanied with IFO and BUP files. These files respectively have .ifo and .bup filename extensions.. IFO (information) files contain all the information a DVD player needs to know about a DVD so that the user can navigate and play all DVD content properly, [12] such as where a chapter starts, where a certain audio or subtitle stream is located, information about menu ...