p.s. thehun likely wont accept a gallery using this anti-hotlink method because the script wont be able to detect if theres actual movies on the gallery ( because the requests would be handled by the php file ) ..
You could still use this method though by changing the php to redirect directly to the video instead of creating an html page to ebmed it into. This way your gallery will still get accepted.. ( you would then be just as prone to hotlinking, BUT you can change the destination video folder with one line of code instead of changing all the html files..
example if i made 200 hun galleries and each one had 4 videos on it.. like < a href=http://yoursite.com/hotlink/1-a.wmv>1</a>
the real video would be in
http://yoursite.com/differentfolder/1-a.wmv redirected using the htaccess , now if people started hotlinking your vids you simply change the destination folder to yoursite.com/newfolder, then change the 1 line of htaccess and you dont have to change 800 links on all the html pages.. its done with one simple edit.