Cloud services or local transfers sometimes rename files into this format during sync. Technical Profile of an MP4 File
To help you identify the content, these types of filenames usually originate from: g4_0186.mp4
Large-scale video datasets (like Kinetics or Moments in Time) use similar short codes to label clips. Cloud services or local transfers sometimes rename files
While the specific content of is unknown, as an MP4 (MPEG-4 Part 14) file, it likely follows these standards according to Wikipedia : the device it was found on
Providing the source website , the device it was found on, or the folder name it belongs to would allow me to give you a much more detailed report. h.264 mp4 file doesn't play properly - Google Groups
It can house video, audio, subtitles, and still images in a single file .