VOB - DVD Video Object File

What is a VOB file

Commonly referred to as the DVD Video Object file, VOB is one of the mot frequent formats for storing video and audio streams on DVD discs. A VOB file can contain video, audio, subtitles, DVD menus and navigation content multiplexed together into a stream form. It contains video streaming in MPEG-2 format and audio streaming in one of several formats.

VOB files consist of video, audio and subtitle streams, and are usually stored in the VIDEO_TS folder at the root of a DVD. The video stream in a VOB file is in MPEG-2 format, the audio on the other hand can be stored in many different formats like AC-3, MPEG-2 multichannel, MPEG-1 Layer 2 dual channel, or PCM format. The AC-3 format is the most commonly used because it offers a good compromise between quality and low bitrate.

Here's a small, but not exhaustive list of programs that can open VOB documents:

  • Video Lan VLC Player
  • Microsoft Windows Media Player
  • BlazeDVD, Corel WinDVD
  • PowerDVD 11
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