: Stands for "Web Download." This means the file was losslessly extracted from a professional streaming service like Disney+ or Bravia Core, rather than being recorded from a screen.
Since Infinity War was filmed entirely with digital IMAX cameras, the IMAX Enhanced version maintains the expanded 1.90:1 ratio for the entire film , eliminating most of the letterboxing (black bars) seen in the standard release. avengers infinity war 2018 imax 2160p webdl upd
: Commonly an abbreviation for "Updated" or "Update" . In the context of online media posts, this typically signals that a previous version of the file has been replaced to fix an error, such as a glitchy audio track, incorrect subtitles, or a sync issue. Related Facts : Stands for "Web Download