I have a friend who is having some bandwidth stolen, so I am trying to modify his .htaccess file to stop the theft. I think I finally have the problem solved.
Here is the code I included in his .htacess file to prevent bandwidth theft from outside websites:
RewriteEngine On
RewriteCond %{HTTP_REFERER} !^http://(.+\.)?vintagerotaryphones\.com/ [NC]
RewriteCond %{HTTP_REFERER} !^$
RewriteRule .*\.(jpe?g|gif|bmp|png|wav)$ /images/nohotlink.jpe [L]
That being said, here is the link to the wav file that is being stolen. Give it a click and see how it works. I think it will solve the problem.