stands for Myanmar Subtitles . In the online streaming community in Myanmar, "MM" is the standard abbreviation for Myanmar. Therefore, an "MMSub" version of a movie is a file or stream that has been hardcoded or soft-coded with Burmese text translations.
No, "Mmsub" itself is just a label. However, be careful. If you are downloading video files from random websites (often the case when searching for "top" releases), ensure you have antivirus software. Stick to trusted subtitle sites for the .srt files, not executable files. oh my god movie mmsub top