You could always burn the song on to a CD, which will convert it to an unprotected mp3 (usually, but the file type can be changed in options). Of course you have to rip it to get it the copy you want on to the computer.
This method has worked for me with Sony's music store, Best Buy's Digital Music Store (Rhapsody), Yahoo's Music Engine, and Itunes, so it should work for what you want. In your case, it's only one song, so it should be easy. If you buy from multiple sources, this method can be a pain (but still free, if you don't count the cost of the CD).
If that's the only song you want to have unprotected and converted, make sure it's put on a CD-RW so you don't waste a whole CD for one song. |