: This identifies the source website or "release group" responsible for uploading the file. World4UFree is a well-known pirate site frequently targeted by legal blocking orders in India.
Files with these naming structures are often flagged by cybersecurity filters and government regulators: world4ufree-cfd-bb-s16-e32-720p-mkv
: Likely a sub-group tag or a specific encoding identifier used by the site's uploaders. : This identifies the source website or "release