Movie Maker shuts down when importing an MP3 downloaded from Amazon

I have a somewhat large project in Movie Maker.  I just need to add another song and I'll be done.  I found the song online and purchased it through Amazon.  However, every time I try to import the song, Movie Maker closes the entire program.  When I go back into it, the song is not there.  It appears it only does this with the 4 songs I've downloaded from Amazon.  Does anyone know why this happens or if there is a way to fix it?  I don't know where else to get the songs from since we don't use iTunes anymore.  Thank you!