this is a one-week assignment in the computer vision course at Carnegie Mellon...

sigh... Microsoft is smarter than we think. If you've noticed they have a pretty attractive suite to go with the Zune which eliminates DRM problems at a relatively cheap price. With a Zune and $15/month you have easy unlimited music that practically never expires and re-attains licenses easily. Although I would have never bought a Zune, I have a Zune because they gave me one for free when they tried to get me to accept their job offer.