: MP4 (MPEG-4 Part 14). This is a universal container for digital video and audio, compatible with almost all modern devices. Naming Convention : The "g" prefix is common in:
: Use a tool like MediaInfo to see the "Writing Library." This can tell you the specific brand of camera that created the file. g_022.mp4
: Many budget security systems use a single letter followed by a three-digit sequence (001, 022, etc.). : MP4 (MPEG-4 Part 14)