G371_001.mp4

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

High-end cameras or dashcams sometimes use specific codes for folders and files. For example, GoPro uses prefixes like "GOPR" or "GH," but other brands may use custom alphanumeric strings like "G371" to categorize batches or date-based folders. g371_001.mp4

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. If you are seeing this filename, it is

VLC Media Player is often the best choice if you are having trouble with specific codecs. VLC Media Player is often the best choice

"g371_001.mp4" appears to be a specific file name rather than a widely recognized piece of media or a viral internet phenomenon. In a general context, it follows a standard often used by digital cameras, security systems, or video editing software.