: Look at the website or directory where you saw the name. If it was in a folder labeled "Travel 2023," it is likely personal footage; if it was on a media assets site, it is professional stock.
If you have found this filename in a list or search result and want to know exactly what is in the video without downloading it:
: Many cameras (like Garmin or various "no-name" brands) generate sequential file names. "AJB" followed by a string of numbers is a common default naming convention for recorded loops. Ajb06719 mp4
Knowing the website or the topic of the page it was on would help in identifying the specific footage.
Regardless of the visual content, a file with the .mp4 extension typically follows these technical standards: : MPEG-4 Part 14. : Look at the website or directory where you saw the name
: If you have the file, right-click and select "Properties" (Windows) or "Get Info" (Mac) to see the creation date and camera model.
: If the file is associated with a thumbnail image, you can use a reverse image search to find the original hosting platform. "AJB" followed by a string of numbers is
: Sites that aggregate public-domain or creative commons videos often retain the original camera filenames. Technical Profile of an MP4 File