Convert MPL to MTS

Multimedia playlists cannot be converted to multimedia files, which means that mpl to mts conversion is not possible. A .mpl file contains just a list of videos or music to be played in a sequence with a media player, not the actual multimedia files. 

However, you can manually open the playlist using a text editor and check the location of the actual audio files. If the playlist is not yours, it is unlikely you will find them thought.

Simply put, it is impossible to convert MPL to MTS directly.
Thus, there is no so-called mpl to mts converter or a free online .mpl to .mts converter to be found.