VOB File Extension

A VOB file (Video Object) is a container format in DVD-Video media.

What is VOB file?

VOB can contain video, audio, subtitle and menu contents multiplexed together into a stream form. VOB is based on the MPEG program stream format, but with additional limitations and specifications in the private streams. 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.

On the DVD, all the content for one title set (VTS) is contiguous, but broken up into 1 GiB VOB files in the computer compatible file systems for the convenience of the various operating systems. Each VOB file must be less than or equal to one GB. Other DVD files include IFO and BUP files.

How to play VOB file?

Open VOB file with VLC media player

VLC media player can open the VOB file directly. The VLC media player is a free, versatile multimedia player that is compatible with most video file types, including VOB files. VOB files are defined as DVD Video Object files and are normally contained in a folder named VIDEO_TS on the DVD or within the ripped disk image. VOB files may be burned to a DVD and played in home DVD players. However, VOB files may also be played directly using the VLC media player.