: The video compression standard used (also known as AVC).
: Sourced directly from a streaming service (like Netflix or Amazon) rather than recorded from a TV broadcast. DD5.1 : Dolby Digital 5.1 surround sound audio.
: A redundant or double extension, likely indicating the file is a video container (though typically it should be one or the other). Where to Watch
: The name of the "release group" that ripped and encoded this specific file.