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: