: The source of the video, meaning it was downloaded directly from a streaming service (like Netflix, Amazon Prime, or Disney+) without being re-encoded, which generally preserves quality better than a "WebRip." 350mb : The total file size, optimized for quick downloads.
: The video resolution (854 x 480 pixels), which is standard definition suitable for mobile devices or small screens.
The text you've provided appears to be a specific filename for a pirated or "warez" copy of a movie, likely the film V , formatted for high-efficiency downloading (480p WEB-DL at roughly 350MB). Understanding the Filename Components