Shekhar,
We have used MP4 video format in an HTML5 project (exported as HTML5 only) -- and it does work successfully when viewed from a desktop computer, and some iPads. But the same exact video does *not* work (blank white screen) when viewed from other iPads and iPhones. Have you seen this behavior, and do you have any suggestions for what we can do on our end to solve this video problem?
Please let me know if offering more information would be helpful to you. Thank you for your time!