I think 3Mbps isn't quite enough for most 1080p content. It might be an extreme example but check out my previous post with that particle explosion, it gets completely mangled with such low bit rates.

Having to upload 5 second clips externally seems wrong, no?

yep, I hope it'll improve without them trying to sell premium accounts for better video compression :)

Interesting, it looks like this here, even tried a different browser to avoid loading a cached version of the uploaded video. Also hi!

that compression is not very generous to that sim I have to say :(

Thanks, this is done in Houdini