This indicates the visual quality (High Definition). In an era of varying bandwidth, knowing whether a file is 4K, 1080p, or 720p before clicking is vital for user experience.
This article explores the technical anatomy of such file naming conventions and why they are essential for managing large-scale video libraries. The Anatomy of a Digital File Name 021616-097-carib-1080p.mp4
This serves as a quick visual reference for the content's origin or niche, helping users identify the "label" or series without opening the file. This indicates the visual quality (High Definition)