mp4 - Web Browser (Advanced) H.264 720p - Desktop Safari conflict!

[gmmit]

Hello, I have trying the arista trancoder to convert some mp4. files out of mov files uncompressed. Everything works fine on all devices and browsers (safari on ipad, iphone etc.), only on safari browser safari v. 5.1.8. and mac os x it doesn’t work. Cant load properly the file in the browser and html5 player...