And unlike the M4V file that can only be recognized by limited devices, MP4 can play on all prevalent devices and media players. However, there are bound to be times you want your M4V movies or TV shows to be available on an Android smartphone, Windows 10 PC, and other devices in your arsenal. If you are looking into how to convert M4V to MP4 on Mac, Windows, or web, then you've come to the right place.Īs a member of the closed Apple ecosystems, M4V is primarily used for storing the free or paid videos that you get from the iTunes Store and is constrained to play on iTunes and QuickTime Player in theory.