File Extension VOB

  • Full name
    DVD Video Object Format
  • Developer
  • Popularity
Have you encountered a problem with a VOB file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a VOB file here. In the further part of this page we have added a list of programs that should open your VOB file. It is enough you choose a proper application for your operating system, download and install it.


The extension VOB is derived from Video Object. These files are mainly found on DVDs.

The format is based on the MPEG Stream format, which has been adapted to the special requirements of a DVD. A VOB file is a special container that can contain multiple audio and video streams, subtitles, navigation, menus, and chapters.

A VOB file is part of a set called VTS, which contains more VOB files as well as ifo and bup files. The video data within a VOB file is always in MPEG II format, but the audio streams can be coded using different methods. The most common ones are ac3 and dts.

Virtually all commercial DVDs are protected by a Content Scramble System (CSS) copy protection process and are subject to various restrictions.

Unprotected VOB files can be played by many MPEG II enabled players. However, direct play causes only the simple video, audio stream to be played. Navigation, menus, etc. are not taken into account. For this you have to play the DVD or the corresponding directory.

Such VOB files can also be converted to another format.

The direct generation of VOB files is usually not possible and also pointless, since they are part of the structure of a DVD. Almost every video editing program is able to create DVDs and thus also VOB files and the associated structure.

Programs which can open a VOB file

How to open a VOB file? Advice and guidance

Absolutely most often appearing reason that prevents you from opening the VOB file is the lack of a proper application to support it in your operating system. It is notably the first thing you need to address. When one of the programs to support a VOB file from the list is already installed, you can try to rerun the file. The system should display a message asking you to choose a primary application to support VOB files. At this point we are looking for disk space where the application was installed in and we can link it with a VOB file. Since then, our operating system will use the selected program to support all VOB files.

Other issues

Despite the described problem with VOB there may be many more problems. If the existing operations were not effective, get involved with the following matters:

- verify that the VOB file is not damaged and that it has been downloaded or copied in whole
- verify that the file has a file extension that has not been intentionally changed (for example, if it do not contain other information than its extension suggests)
- make sure again whether the VOB file type is linked in the operating system with a proper program
- make sure that the file is not infected with a virus and you have up to date software and drivers.

Similar extensions