Is there any particular reason why you are not using your usual account
http://www.dynamicdrive.com/forums/m...5-theremotedr? If you are having problems logging in, let us know and we can try to assist.
As for the problems you are experiencing on your page, please follow the previous advice and clean up the errors using the validator. With a cleaner page, it will be easier for you to assess where your problems are originating - the problem may even be resolved through exercising the code validation task (you receive this advice regularly so it's surprising that, as a senior coder, you don't reach for this as the first string in your troubleshooting bow, and rule validation errors out as the root of your problems, before posting).
You could also consider making a reduced test case in something like JSBin, JSFiddle or CodePen, using just enough code to demonstrate or isolate the problem. The page you have linked to contains *a lot* of code which will put many folks off troubleshooting for you. Make a reduced demo to help us to help you.
You might also need to review the syntax/elements, or any JavaScript you are using to make sure they are being implemented correctly, and build up your code again from a very basic example. For help with correct video element usage, you can refer to developer guides online (a quick Google for "HTML5 video tag" with bring up many examples). If you are using JavaScript to open the video, show it to us - the easiest way will be in a reduced test case so that we need only concentrate on the video, label and any JavaScript that relates to just this aspect of the page.
To summarise;
- clean up your code using the validator to see if that fixes the issue
- check your usage/syntax of the video element and JavaScript (and possibly try another video in case the MP4 encoding is causing the problem)
- create a reduced test case to demonstrate and isolate the problem if it still persists
- recreate the page bit by bit until you identify any influencing factors