Mixxx And Vob Files
How to Convert VOB Files to Other Formats. VOB is a file format used for storing DVD Video. VOB files can contain multiple video and audio streams, subtitles, and DVD menus. Many PC- or Mac-based players can play VOB files, but most mobile devices don’t support this format and some laptops don’t have a DVD drive. Mixxx is a free downloadable software for Windows PC, Mac and Linux that allows you to become a DJ where it gives everything you need to perform mixes. With Mixxx, you can blend songs along with automatic BMP, mixing with looping and hot cues. It has an integrated database library, or you can access your iTunes library. Aug 06, 2008 VOB stands for DVD Video Object. It is basically one of the core files found on DVD-Video discs and contains the actual movie data. Basically VOB file is just a basic MPEG-2 system stream - meaning that it is a file that contains multiplexed MPEG-2 video stream, audio streams (normally AC3 and DTS formats) and subtitle streams. Although Mixxx 2.2.3 contains many important updates and bugfixes, it's possible some users may experience issues. If you do, you can still get our previous stable version, Mixxx 2.1.8. Mixxx is available for Windows, macOS, and Linux. You don't need to pay for Mixxx because you can get it here for free. How to Play VOB files in Windows Media Player. A VOB (DVD Video Object) file is a file container format that DVDs use. A VOB file contains the actual movie from a DVD and its audio and streaming data that allows a user to scroll through the video.
| Filename extension | .vob |
|---|---|
| Internet media type | video/dvd, video/mpeg,[1][2] video/x-ms-vob[citation needed] |
| Developed by | DVD Forum |
| Type of format | Media container |
| Container for | Audio, video, subtitles |
| Contained by | DVD-Video |
| Extended from | MPEG program stream (ISO/IEC 13818-1) |
| Standard | DVD-Video Book[3][4] |
VOB (Video Object) is the container format in DVD-Video media. VOB can contain digital video, digital audio, subtitles, DVD menus and navigation contents multiplexed together into a stream form. Files in VOB format may be encrypted.
File format[edit]
Files in VOB format have a .vob filename extension and are typically stored in the VIDEO_TS directory at the root of a DVD.[5] The VOB format is based on the MPEG program stream format, but with additional limitations and specifications in the private streams.[6][7][8] The MPEG program stream has provisions for non-standard data (as used in VOB files) in the form of so-called private streams. VOB files are a very strict subset of the MPEG program stream standard. While all VOB files are MPEG program streams, not all MPEG program streams comply with the definition for a VOB file.[6]
Analogous to the MPEG program stream, a VOB file can contain H.262/MPEG-2 Part 2 or MPEG-1 Part 2 video, MPEG-1 Audio Layer II or MPEG-2 Audio Layer II audio, but usage of these compression formats in a VOB file has some restrictions in comparison to the MPEG program stream. In addition, VOB can contain Linear PCM, AC-3 or DTS audio and subpictures (subtitles).[7][9][10] VOB files cannot contain AAC audio (MPEG-2 Part 7), MPEG-4 compression formats and others, which are allowed in the MPEG program stream standard.[citation needed]
On the DVD, all the content for one title set is contiguous, but broken up into 1 GB VOB files in order to be compatible with all operating systems, as some cannot read files larger than that size.[6] Each VOB file must be less than or equal to one GB.[11]
Companion files[edit]
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 functions and navigation. BUP (backup) files are exact copies of IFO files, supplied to help in case of corruption. Video players may not allow DVD navigation when IFO or BUP files are absent.
Images, video and audio used in DVD menus are stored in VOB files.
Copy protection[edit]
Almost all commercially produced DVD-Video titles use some restriction or copy protection method, which also affects VOB files.[13] Copy protection is usually used for copyrighted content.
Many DVD-Video titles are encrypted with Content Scramble System (CSS). This is a data encryption and communications authentication method designed to prevent copying video and audio data directly from the DVD-Video discs. Decryption and authentication keys needed for playing back encrypted VOB files are stored in the normally inaccessible lead-in area of the DVD and are used only by CSS decryption software (e.g., in a DVD player or software player). If someone is trying to copy the contents of an encrypted DVD-Video (e.g., VOB files) to a hard drive, an error can occur, because the DVD was not authenticated in the drive by CSS decryption software. Authentication of the disc allows the copying of individual VOB files without error, but the encryption keys will not be copied. If the copied undecrypted VOB files are opened in a player, they will request the keys from the DVD-ROM drive and will fail.[14][15] There are many CSS-decrypting programs, or ripping software, such as libdvdcss, DeCSS, DVD Decrypter, AnyDVD or DVD Shrink which allow a protected DVD-Video disc to be played without access to the original key or copied to hard disk unscrambled. In some countries, their usage can be a violation of law (e.g. for non-personal use).[15]
Playback[edit]
A player of generic MPEG-2 files can usually play unencrypted VOB files, which contain MPEG-1 Audio Layer II audio. Other audio compression formats such as AC-3 or DTS are less widely supported.[citation needed]
KMPlayer, VLC media player, GOM player, Media Player Classic and more platform-specific players like ALLPlayer play VOB files.
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Other DVD containers[edit]
Some DVD Recorders use DVD-VR format and store multiplexed audiovisual content in VRO containers.[16][17] A VRO file is equivalent to a collection of DVD-Video VOB files. The VRO files can be played directly like a VOB if no editing is intended.[18] Fragmented VRO files are not widely supported by software players and video editing software.[16]
Enhanced VOB (EVO) is also an extension to VOB, originally meant for the now-discontinued HD DVD video. It can contain additional video and audio formats such H.264 and AAC.
See also[edit]
References[edit]
Copy Vob Files To Dvd
- ^'VOB File Format'. WhatIs.com. TechTarget. Retrieved 18 April 2012.
- ^'.VOB File'. FileExt. UniBlue. Retrieved 18 April 2012.
- ^DVD FLLC (2009-02) DVD Book Construction - list of all available DVD Books, Retrieved on 2009-07-24
- ^DVD FLLC DVD Format Book - History of Supplements for DVD Books, Retrieved on 2009-07-24
- ^'.VOB File Extension'. FileInfo.com. Retrieved 18 April 2012.
- ^ abc'What is a VOB file'. MPUCoder. SoundWare Associates. Retrieved 18 April 2012.
- ^ ab'DVD - MPeg (sic.) differences'. DVD Resources for Open Source Development. SourceForge. Retrieved 28 April 2012.
- ^'Is it easy to understand DVD format?'. Archived from the original on 2001-10-24. Retrieved 2011-02-26.
- ^MPEG.org (July 21, 1996) DVD Technical Notes - Video Data Specifications, Retrieved on 2009-07-25
- ^Videohelp.com What is DVD? Technical Info for DVD-Video, Retrieved on 2009-07-28
- ^Doom9.org doom9.org What's on a DVD?, Retrieved on 2009-07-26
- ^AfterDawn.com (2007-07-31) How to play VOB / IFO / BUP files, Retrieved on 2009-07-26
- ^DVD Demystified (July 13, 2009) What are the copy protection issues?, Retrieved on 2009-07-28
- ^DVD Demystified (July 13, 2009) DVD Frequently Asked Questions (and Answers) - Why can't I play movies copied to my hard drive?, Retrieved on 2009-07-28
- ^ abWhat are the copy protection schemes used in DVD ? What is CSS ?, Retrieved on 2009-07-28
- ^ abDVD Demystified (July 13, 2009) What are .IFO, .VOB, .AOB, and .VRO files? How can I play them?, Retrieved on 2009-07-28
- ^Doom9's forum (2002-2005) DVD-RAM *.VRO File Conversion, Retrieved on 2009-07-28
- ^DVD-VR Application format notes, Retrieved on 2009-07-28