Video mp4 filedot

It seems like you're requesting information about MP4 files or video formats in general. MP4 (MPEG-4 Part 14) is a digital multimedia format commonly used to store video and audio, as well as other data such as subtitles and images. If you meant something specific about MP4 files, such as how to create, edit, convert, or play them, please provide more details, and I'll be happy to help!