G371_001.mp4 -

Could you clarify ? Knowing if it's from a specific website, a security system, or an old hard drive would help identify its exact origin. How to play MP4 files in Windows - Microsoft Support

If this was found in a downloads folder or a shared drive, it may simply be an automated filename from a screen recording tool or a video converter that hadn't been manually renamed. g371_001.mp4

If you are seeing this filename, it is likely one of the following: Could you clarify