Dois artigos interessantes sobre o tema, com muitas informações e vários links úteis:
The Music Licensing Chickens Have Come Home to Roost in Wedding and Event Videography
http://daredreamermag.com/2011/12/07/the-music-licensing-chickens-have-come-home-to-roost-in-wedding-and-event-videography/
How to Legally Use Music in Your Films and Videos
http://daredreamermag.com/2011/02/23/how-to-legally-use-music-in-your-films-and-videos/