Prevent users from accessing mp3 files directly

[jordanwb]

I'm making a jukebox in PHP. I want Windows Media Player (etc.) to be able to access the mp3 files but I don't want the user to be able to find them then download the song. Is this possible?

 

I'd google but I don't know what to google for.

 

[Edit] A bit of extra info: I'm using PHP to "write" a m3u file to the browser which is sent to the media player. I don't want the user saving the m3u file, opening it in notepad and getting the urls for the songs.

 

[Edit #2] I'll probably be the only one using it so I probably won't need extra security.