01. Mom And — Daughter.mkv.mp4

Remove the extra .mkv or .mp4 so only one remains (e.g., 01. Mom And Daughter.mp4 ). Select the file and press Command + I to "Get Info." Under Name & Extension , delete the unnecessary extension. 4. Convert if Unplayable

The is always the one at the very end. In this case, your computer sees it as an MP4 file . However, if it was originally an MKV and someone just typed ".mp4" at the end, it might not play correctly in standard players. 2. How to Play the File 01. Mom And Daughter.mkv.mp4

A free tool to convert MKV to MP4 (or vice-versa) properly without just changing the name. Remove the extra

Because of the potential format confusion, it is best to use a "universal" media player that can handle almost any codec. However, if it was originally an MKV and