: This indicates the resolution is Full High Definition (
: Digital Video Recorders (DVRs) often export clips using date-time stamps and camera identifiers (e.g., "Paco" might be the name of a specific entrance or hallway).
: Many creators upload clips to databases using these identifiers to keep track of their catalog across different resolutions (720p vs 1080p).
Filenames like this are standard in several professional fields:
: The file format is an MPEG-4 Video, which is a standard container for high-quality compressed video. Common Uses for This Naming Style