If I upload a movie to my site and set it open in Automatic mode, I cannot get it to play from a Mac. I am using mp4 and m4v file types. The issue is not browser specific - in Safari, Firefox and Chrome I am getting the same results - another user on another Mac is having the same issue. Movie will load, sometimes will show for a second, sound will continue for a few seconds and then nothing. From a PC, movies play just fine.
I can play movies on other sites and if I embed the movie in a label, they play just fine on the Mac. It is only when I insert the movie through the add file resource.