It uses high compression to maintain small file sizes without significant quality loss. How to Inspect or Open the File

Right-click the file in Windows and select Properties > Details to see the resolution, frame rate, and bitrate.

MP4 is a digital multimedia container used to store video, audio, and metadata like subtitles and still images.

Are you trying to a playback error or identify the content? How do I get the meta-data of a video file? - Super User

It is widely supported across Windows, macOS, and mobile devices.