The video/mp4 MIME type
a video type used by 2 file formats in the database.
video/mp4 is the MIME type (also called a media type) for .f4v and .mp4 files. A MIME type is the label a server, browser or email client uses to say what kind of data a file is, independently of its name or extension.
File extensions with the video/mp4 type
These formats declare video/mp4 as a MIME type. Open any one for its signature, how to open it and how to convert it.
What is a MIME type?
A MIME type, or media type, is a short label like video/mp4 that names a kind of data. It has two parts separated by a slash: the general category (video) and the specific format (mp4).
The point of a MIME type is that it does not depend on a file's name. A web server sends it in the Content-Type header so your browser knows how to handle a download, email attaches it to each part of a message, and file tools use it to decide what a file really is. That is also how the WhatFileType identifier reports what your file is: by its bytes, not its extension.
Get it as JSON
Every format's MIME types are available from the free WhatFileType API, and the full signature reference lives in the magic-numbers table.