: Refers to the HEVC (High Efficiency Video Coding) codec. This is a modern compression standard that provides high video quality at significantly smaller file sizes compared to the older H.264 (AVC) standard.

: Indicates a high-definition resolution of 1920x1080 pixels.

: Indicates that this is the first segment of a "split archive." Large files are often broken into smaller parts (part1, part2, etc.) to make them easier to upload and download on servers with file-size limits. How Split RAR Archives Work

Files with these types of names are frequently hosted on third-party "cyberlocker" sites. Users should be aware of several risks:

: If even one part is missing or corrupted, the entire archive usually becomes unusable, as the data is spread across all segments. Safety and Security Risks