: This is the archive format used to bundle the data. You will need a utility like 7-Zip or WinRAR to extract the actual video file from the container. Why AV1 Matters
: This is the primary title of the content. While it likely refers to a specific character, series, or creator, it is the identifying label for the media within the archive.
: This signals that the file is the second installment of a larger set. High-quality video files are often split into multiple "parts" or volumes to bypass upload limits on various hosting platforms.