A flexible "open-standard" container that can hold multiple audio tracks, subtitles, and high-quality video codecs. It is popular for high-definition media but lacks universal compatibility with all devices.
This often occurs when a user or an automated tool manually changes the file extension without correctly converting the file, or when a file has been "remuxed" (changing the container format without re-encoding the video). dirty family - xprime.mkv.mp4
The presence of two extensions— .mkv and .mp4 —suggests a specific technical scenario: A flexible "open-standard" container that can hold multiple