However, sometimes, you will find QuickTime can't open and play MP4 video file. It supports many formats such as QuickTime movie files (MOV), most MPEG-4 files (MP4, M4V, M4A, MP3), MPEG-2, and others. QuickTime Player, a free multimedia player, is currently available on Mac OS X Snow Leopard and newer.
What should you do when QuickTime can’t open MP4 files? How to convert MOV to MP4 free? Whether you just want to convert MP4 to MOV files or want to convert QuickTime to MP4, you can try QuickTime converters, for instance, MiniTool MovieMaker. This post shows how to convert video to QuickTime and vice versa.
