Therefore, here, we'll list 4 most recommended robust and popular HD media players for your Mac Yosemite and El Capitan (OS X 10.11.4 and before) to play almost any file format. That's damn crazy to spend money on just playing MPEG-2 and for other functions. And QuickTime 7 and the QuickTime Pro upgrade are not free of charge. What if you want to find a free HD video player for Mac? If you want to play HD movies in MPEG-2, you'll even have to purchase QT MPEG-2 Playback Component sold separately at the App store. Mac built-in HD media player Quick Time can only open several HD media files such as MP4, MOV, M4V etc, and surely cannot play files in WMV, MKV, DIVx, FLV.