The hotel where my sister is having her reception has asked to have copies of the DJ's business license and certifications that he has the appropriate copyrights to play the music. The man that will be the DJ played at my wedding 6 years ago and the last place didn't ask us for these things. He does this on the side (is our parent's age--used to do it a lot more when he was younger--before the whole recent copyright issue thing---doubt he knows how to even download music) and probably doesn't have a business license. Has anyone run into this issue? Any advice? This man is a long-time family friend of ours and is doing the wedding as a favor to us...