Since this is an .mkv file, it works best with versatile media players like or IINA . These apps allow you to easily switch the audio tracks and subtitles via the "Audio" and "Subtitle" top menus.
If you are sharing this file or organizing a media library, here is a helpful summary of what those technical details actually mean for the viewer: Title: "The Great Wave" (S01E04) Since this is an
"MSub" stands for Multi-Subtitles, usually indicating that several language options are embedded in the file. Since this is an .mkv file