Free Music Downloads that are legal...really

In an interesting move Universal Music Group is planning on offering free downloads of their catalog as well as trying to get several other label's catalogs. The idea is to get people to come to the website to watch ads which will unlock the music to be downloaded. DRM in the downloads will prevent burning and will lock up the music if you don't go back to the site to watch ads. I'm not sure that I will go in for this idea. I'm still fine paying 99¢ for my songs with unlimited use. Call me cynical, but I'm betting this DRM will be cracked within 2 weeks of being introduced, thus ruining the new business model.