G4_0163.mp4 -

: Many digital video recorders (DVRs) use a g[group]_[number] format. If you found this on a SD card, it is likely a timestamped recording from a specific camera "Group 4."

: Academic datasets (like those used for gesture recognition or action detection) often use alphanumeric strings to categorize clips. For example, "g4" might refer to "Gesture 4" or "Group 4" in a research study.

If you have the file but cannot open it, or need to describe it for a project, check these details:

: Video editors and 3D software (like Blender or After Effects) often generate default names based on "Group" or "Global" settings if a custom name isn't provided during the render. How to Identify the Content