title: Make a CD run once
body: <p>We're doing an "Amazing Race" kind of event, and thought it would be cool to have CDs that could only play once... like a "this message will self destruct in 5 seconds..." </p>
  
  <p>Any thoughts on how to do this?  I was thinking it could be a compiled HTML website that would write a cookie and only play once.  I don't want to write to the registry (don't want to depend on windows, don't want to install anything, etc).</p>
  
  <p>I also don't care if it's hackable... This is a one-time fun event, and I don't really care too much if people could remove the cookie or something.</p>
  
  <p>Any other ideas?</p>