A .VOB file can be played by using installed software on a computer, or by converting the file into another format that is more easily read, such as an .MP4 file. A .VOB file is fairly easily played by downloading specific video codecs or players, such as Windows Media Player or a VLC player.
The acronym VOB stands for video object, and a .VOB file is part of DVD files that are found on typical DVDs. Other files are found on a DVD disc, such as .BUP and .IFO. However, the .VOB file is the combination of an MPEG-2 file and an audio file, and is the actual movie, separated into parts. A .BUP file stands for backup and an .IFO stands for information. These types of files are not necessary to just view a movie.
There are many areas on the Internet to download VOB players. However, many versions of Windows Media Player, which is installed automatically on a Windows computer, can play .VOB files. However, if the version of Windows Media Player is not suited to support MPEG-2 files, it may not be able to play .VOB files. In this instance, a converter is easily downloadable, or the file can be played on another video player that supports MPEG files.