This is often done to ensure the file plays on standard devices like smart TVs or mobile phones that may not support MKV subtitles or audio tracks.
The device used for the swap often malfunctions due to external factors like an earthquake or power surge, creating a ticking clock to reverse the process. Technical Note on the File Mind_Swap_Epi5.mkv.mp4
Characters who have successfully swapped minds in earlier episodes now face a "point of no return" where the technology begins to degrade or a third party intervenes. This is often done to ensure the file
Usually, these files are encoded in 720p or 1080p , though the dual extension can sometimes indicate a corrupted header if the file fails to open. Review: Star Trek: Strange New Worlds, "Spock Amok" Mind_Swap_Epi5.mkv.mp4