This is not what you are asking for but perhaps it achieves the same end.
The trick is to place your videos (and / or any other media content) in a subfolder that is regularly randomly renamed by a php script that also writes this temporary file name to a (htaccess protected) text file.
The regular renaming (say 2 hourly) is generally achieved via a cron job though there are alternatives.
Then in your video links you place a php include to that text file eg
<a href="../m-video/<? include '../cryptic/m-video.txt' ?>/thisvid.wmv">vidname</a>
../cryptic/m-video.txt is the address of the text file and the cryptic folder is htaccess protected.
In this example I am using php include and the html file is php enabled but you can alternatively use SSI.
I do have such a script but probably you can do it yourself. It takes a bit of getting your head around first time but once you've got it working it is easily applied to any number of links.
The primary reason for this structure is to prevent hotlinking of video by other webmasters since htaccess does not protect video files.
This system is most suitable for situations where the linking pages are already protected with htaccess (otherwise an unscrupulous webmaster can read your renamed link data from the html file with a script of their own).
andrew
