: MP4 is the most popular video container format because it works on almost all devices, including iPhones, Androids, and smart TVs.
Could you provide on where you saw this name? Knowing if it was on a specific social media platform or a technical forum would help narrow it down.
: In many content management systems or stock photo sites (like the Argelès-sur-Mer Tourism site ), "9879" is simply an automatically generated ID for a specific image or video asset, such as a family camping photo. General MP4 Knowledge