.mp4 (MPEG-4 Part 14). This is a widely supported multimedia container format used for storing video, audio, and subtitles.
Used to prevent filename collisions.
Apps like WhatsApp or Telegram often rename media files with similar alphanumeric strings during transit. 0hb54yufz8t8s5p5g0224_720p.mp4
Many digital video recorders (DVRs) generate randomized strings for recorded clips. 0hb54yufz8t8s5p5g0224_720p.mp4
