Hi, klaus, thanks for your videoplayer plugin~
As far as I know, it's working well expect one thing: Directional Sound supports Hotspot only.
I remember watching a pano video, with Videoplayer working as <PLUGIN> of course; there are boys playing instruments on a football, around the viewpoiont; however, as I rotate my view around, the sound just keep its pan still 
- How I wish I could hear all the sound spinning from my one ear to the other when I'm rotating my view! It would feel more in real~
Although I know it may be a little hash 
to retrive a full directional sound from a stereo merely by shifting the pan and volume(soundTransform), at least it will do, quite a little bit. Come on klaus! This is easy job for you right now, I mean it's impossible either for you to publish your videoplayer src, or for me or anyone to revise engineering your plugin, not to mention applying some sort of stereo filter in external using JavaScript or other stuff(never heard of it), is this correct?
Anyway it is a small wish 
, hope you can granted it, or just turn it on for me plz~ 
with many thanks in advance 
~