A Number of the KJ's in my area of the world got together some years ago and pondered the idea of recording our customers singing and giveing them the tape(s) and most of us figured that their might be some legal issues in that regard.
The reasoning was that, in the process of doing that, you wind up giving the customer a copy of the copyrighted song. The only way around that, we figured, was if the customer were to bring in his/her own copy of the karaoke song and you record them doing that. That way, it more easily falls under the "fair use" clause.
Not a definitive answer by any means but, it may be worth pondering before proceeding.
Not knowing for sure, is the worst thing.
