Delta labs

http://arstechnica.com/news.ars/post/20080724-drm-still-sucks-yahoo-music-going-dark-taking-keys-with-it.html

Yahoo is closing it’s music store, and with it the DRM servers that verified that you do, in fact, have the right to play the music you purchased. Yahoo is failing and taking your money with it. Which, of course, is the whole reason we hate DRM in the first place.