: Some digital cameras or screen recording software use sequential numbering by default.
The filename is a generic name typically generated by operating systems (like Windows) when a file named "14.mp4" already exists in the same folder, or as a default name for the 14th video in a series. (14).mp4
: It may be the 14th clip in a larger set, such as training videos or educational modules (e.g., commercial real estate training clips ). : Some digital cameras or screen recording software