: Release tags used in private or specialized media sharing circles.

If you are looking for a specific video, you might try searching for the rather than the raw filename. If this was a file shared in a professional or educational group, checking the announcements or resources section of that specific platform is usually the fastest way to find a mirrors or direct download link.

: Large-scale industrial or automotive software packages (e.g., navigation or ECU updates) often use similar versioning codes.

: Identifiers for specific course modules or recorded technical sessions.