: This means the file was losslessly "downloaded" from a streaming service (Netflix). Unlike a "WebRip," this is generally the highest quality version available for streaming titles because it isn't re-compressed during the capturing process.
: This is the compression codec used. It is the industry standard for high-quality video that maintains a manageable file size. Audio & Language
: The "Matroska" container format. It is popular because it can hold multiple video, audio, and subtitle tracks in a single file.
: Stands for Dolby Digital 5.1 surround sound. This means the file supports a six-channel audio setup (front left, front right, center, two surround speakers, and a subwoofer). File Details