V.mp4 -

They act as a "wrapper" for video, audio, and subtitle data.

To give you a more detailed write-up, could you please tell me: They act as a "wrapper" for video, audio, and subtitle data

Regardless of the name, files named "v.mp4" are containers. They act as a "wrapper" for video, audio, and subtitle data

These are often used as inputs for ffmpeg tests to test fragmentation ( _frag.mp4 ), track mapping, and audio-only scenarios. 4. Characteristics of the MP4 Format They act as a "wrapper" for video, audio, and subtitle data