What is a common file extension for an MPEG-2 Program Stream?

The common file extension for an MPEG-2 Program Stream is .VOB. This format is used extensively in the DVD video format, where video, audio, and subtitle data are packaged in a way that allows for playback on standard DVD players.

The .VOB extension stands for Video Object, and files with this extension typically contain multiplexed video, audio, subtitles, and other information needed for playback. MPEG-2 Program Streams are particularly well-suited for environments where data must be strongly synchronized, such as in video playback, which aligns with the purpose of .VOB files.

In contrast, .AVI is a multimedia container format that can contain various codecs, and while it might hold MPEG-2 video, it is not specifically tied to this type of stream. .MP4 is a modern compression format and serves as a container for different types of audio and video streams, but like .AVI, it is not exclusive to MPEG-2. Similarly, .MKV, or Matroska Video, is an open-source container format that can hold multiple audio, video, and subtitle tracks; it is also not designated specifically for MPEG-2 Program Streams.

Thus, .VOB is distinctly recognized as the standard extension for files that utilize