: This refers to 6-channel audio, commonly known as 5.1 surround sound (five full-range channels plus one low-frequency effects channel).
: English subtitles are hardcoded or included as a separate track within the file. The Menu 2022 1080p WEB-DL x264 6CH ESubs - Mkv...
: The Matroska container format, which can hold multiple video, audio, and subtitle tracks in a single file. : This refers to 6-channel audio, commonly known as 5