MP4;V=1

MPEG-4 video file format
File type: Digital video and movie file
Files with mp4;v=1 file extension is related to the MPEG-4 video file format used to store audio and video data.
What is mp4;v=1 file?
File type category:
Digital video and movie file
Date updated: July 13, 2025
The mp4;v=1 file extension is sometimes used for MPEG-4 multimedia file format, that typically uses mp4 file extension. Probably generated by some program for specific reasons.
The MPEG-4 file format, as defined by the MPEG-4 specification, contains MPEG-4 encoded video and Advanced Audio Coding (AAC)-encoded audio content.
How to open mp4;v=1 file?
Most likely can be played back using any standard media player, you may just need to rename the extension.
How to convert mp4;v=1 file?
It should be possible to convert this file type much like standard MP4.
Suggested software to open mp4;v=1 file:
Associated software actions with the mp4;v=1 file
Apps designed for playing mp4;v=1 files:
VLC media player (Microsoft Windows)
VLC media player for Mac (Apple macOS / Mac OS X)
VLC media player for Linux (Linux/Unix)