Hi, when I look at your page, I see the hero video, but it has a different file name:
<source src="http://dl.dropboxusercontent.com/u/1942273/_drop%20files/hero_1.mov">
This was on the page http://beta3.memed.com.br/
Could you check that, and make it so the .mp4 loads up and then will take a further look? The https has caused this problem in the past, so it was one thing to check out, but that appears to not be the issue.
I await your response. Cheers, Dave