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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 ...
At least one file VTS_zz_1.VOB is required in the Video Title Set and each VTS_zz_x. DVD-Video can contain up to 99 (1–99) titles with a maximum of 10 (0–9) VOB files each. The last possible VOB file is VTS_99_9.VOB. … etc. IFO files store control and playback information – e. g. information about chapters, subtitles and audio tracks ...
This is a listing of open-source codecs—that is, open-source software implementations of audio or video coding formats, audio codecs and video codecs respectively. Many of the codecs listed implement media formats that are restricted by patents and are hence not open formats.
Enhanced Video Object, also known as Enhanced VOB, EVOB or EVO, is a container format for HD DVD video media. It contains the actual digital video , digital audio , subtitle and DVD menu contents in stream form.
Contrast DVD-Video where the aspect ratio is coded into the accompanying .IFO file and thus a single .VOB file can be in a single aspect ratio only. VRO is a container format for multiplexed audiovisual content. [2] [3] VRO file is an equivalent to a collection of DVD-Video VOB files.
The quality the codec can achieve is heavily based on the compression format the codec uses. A codec is not a format, and there may be multiple codecs that implement the same compression specification – for example, MPEG-1 codecs typically do not achieve quality/size ratio comparable to codecs that implement the more modern H.264 specification.
Program streams are created by combining one or more Packetized Elementary Streams (PES), which have a common time base, into a single stream. It is designed for reasonably reliable media such as disks, in contrast to MPEG transport stream which is for data transmission in which loss of data is likely.
The Meridian Lossless Packing logo The Advanced Resolution logo. Meridian Lossless Packing, also known as Packed PCM (PPCM), [citation needed] is a lossless compression technique for PCM audio data developed by Meridian Audio, Ltd. MLP is the standard lossless compression method for DVD-Audio content [1] (often advertised with the Advanced Resolution logo) and typically provides about 1.5:1 ...