: The source of the video is a "Web Download," meaning it was captured from a streaming service (like Max/HBO or Amazon) rather than a physical disc (Blu-ray).
: The video codec used. XviD is an older compression format. While it was the industry standard for AVI files in the 2000s, it is technically inferior to modern codecs like H.264 (AVC) or H.265 (HEVC).
Often MP3 or AC3 2.0 (Stereo). It is unlikely to support 5.1 Surround Sound in this specific format.
: The "tag" or name of the specific individual or group responsible for encoding and uploading this version.