[Orb] What is the story behind these MP3's?

I have been organizing my MP3 collection and have a few Orb MP3's for which I don't know where they originated. One is called "Blue Room Mix" and is dated March 16, 2002. Was this a radio program? Then there is the BadOrb promo. When did LX create this and for who? Did it come from a radio broadcast, or was there a promo CD it came from? Finally, there is Orbcast #1. What is the release date for this one? Was this from the Orb's website or someone elses? Thanks!