“MP4 refers to the digital container file that acts as a wrapper around the video, not the video itself. It contains compressed video data and other associated data necessary for playing the video.” YouTube · Project Management · 3 years ago
One reason a file named "g_044.mp4" can be opened on almost any device—from an iPhone to a smart TV—is the universal compatibility of the MP4 format. g_044.mp4
: Technically, the file is organized into a series of "boxes" or "atoms" . Each box, such as the moov (movie) box or mdat (media data) box, tells a media player exactly how to interpret the binary code into a viewable image. Digital Compatibility and Versatility “MP4 refers to the digital container file that