The string you provided is a standard naming convention used in file-sharing communities to describe the source, quality, and origin of a movie file.
: Refers to the DVD region for China . These releases are often the first high-quality retail versions available before a global release. 1080p : The resolution of the video (1920 x 1080 pixels). Movie Information Black Adam [HD] (2022) MD WEBRip R6 1080p
: Stands for Mic Dubbed . This means the audio was recorded separately (often in a cinema with a microphone) and then synced to a high-quality video stream. The string you provided is a standard naming