M4V Player is a practical multimedia player that is interesting for two reasons: one is that it`s totally free, and the other is that you can directly link your M4V files to it. This way, just by double clicking on the file, it opens.
M4V Player comes equipped with the usual functions of any player (view, pause, restart, skip, full screen, etc). You can also create your own playlists or edit some that already exist.
M4V Player also has an internal searcher so finding the M4V file you want on your hard drive is very fast.