If you're looking for the best available version of this film with IMAX aspect ratio, the (often labeled IMAX Enhanced ) is the source for such releases. Note that the physical 4K Blu-ray does not include the IMAX ratio — only streaming versions do.
For best results, use with direct playback. The UPD file is usually an MKV container (Matroska). Ensure: avengers infinity war 2018 imax 2160p webdl upd
: 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. If you're looking for the best available version