File extension VOB is used for multimedia files on DVD disks. A VOB sample file is provided. Free VOB file players and editors are listed.

File Extension: .VOB

File Content: Audio and video data.

What is VOB? VOB is a short name for Video OBject. VOB is used as the file extension for a tream data file for a movie formatted as multiplexed video stream, audio streams, and subtitle streams.

The format of a VOB file is MPEG-2 (Moving Picture Experts Group) standardized by ISO as ISO/IEC 13818.

VOB files on a DVD-Video disc are automatically fetched and decoded by the DVD player machine, or DVD player application on a computer. A stand alone VOB file can be opened and played by DVD player applications like Media Player Classic.

On a DVD movie disc, you may see more that one VOB files, becauses a movie vidoe is usually divided into VOB files with 1,073,709,056 bytes or less.

Here are the first 128 bytes of a sample VOB file dumped in HEX values:

00 00 01 ba 44 00 04 00 04 01 01 89 c3 f8 00 00 ....D...........
01 bb 00 12 80 c4 e1 04 e1 7f b9 e0 e8 b8 c0 20 ................
bd e0 3a bf e0 02 00 00 01 bf 03 d4 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

VOB sample file: Click sample.vob to download.

Audio and video data stored in VOB files can be retrieved and played by popular free software:

• MPlayer - Plays VOB files and other multimedia files.