It stores video, audio, subtitles, and images in a single compressed file .
Platforms like WhatsApp, Discord, or Telegram often rename files upon upload or download to manage their internal databases.
If you have encountered this file from an unknown source, it is important to exercise caution: this .mp4 file is actually malware
Many digital cameras and mobile devices assign a prefix (like "IMG" or "VID") followed by a unique string of numbers to every recording.
An MP4 file , or MPEG-4 Part 14, is one of the most common multimedia container formats used today.