If you're looking for music or a video, here are a few suggestions on how to refine your search:

Because your search includes "MP4," a video format, you might be looking for a video related to one of the other common meanings of the acronym "AJB."

If you tell me the manufacturer of the surveillance system or the source of the file, I can recommend the exact software you need. Share public link

Traditional MP4 is designed as a "jack of all trades," offering broad compatibility.

A lightweight player for Windows users paired with the K-Lite Codec Pack, which decodes almost any complex video layout. 2. Install Missing Codecs