Based on the alphanumeric naming convention, it is likely a from a specific device or app. Here are the most common scenarios where you might see this:
: Cameras and smartphones sometimes use unique prefix codes (though "Ajb" is non-standard for major brands like Apple or Sony) to organize internal folders. Ajb07181 mp4
: Apps like TikTok or Instagram often assign randomized alphanumeric strings to video files when they are saved to your device's internal storage as "drafts." Based on the alphanumeric naming convention, it is