Geep, I have full confidence that the code works. I develop web sites (and by that, I mean coding by hand for almost all of the HTML and all the CSS) as extra income and I can see by looking at it that it is functional code.

What I am less optimistic about is the "nearly universal" ability for this to work in browser. People have been stumped for years for just such a video solution (and Flash, flawed as it is/was, was the closest we got); and it's only now with HTML 5 that there is promise for that difficulty to disappear (but obviously it will take some time for everyone to have browsers that support HTML5).

User testing is a good idea. Try a page and ask people to check it and see what your results are. Maybe I'm being pessimistic. I suspect you'll end having to do some additional work to get things working for the widest possible audience. At the very least, a regular link to the same file (sans the target="blank" etc) with some text there asking people to right click and download if the video doesn't open in their browser. An alternative format for non-Windows users wouldn't be a bad idea either.

I hope you won't need that, but again, I'd be very surprised if you don't....

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Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3