Yer I heard that was the reason Andy wasn't on a lot of the packs this year.
And that idea would be awesome!
I know for a fact that certain DJ's charge to be on a CD pack. Some decline for their sets not to be on there, due to their set may have not gone so well or that they played dubs that they didn't want recorded yet.
Warning already do this,
http://www.warninguk.com/index.php/shop/mp3s.html
Says something like the mp3's are tagged so if someone tries to upload them they willknow who did it
I reckon one of the problems with this would be the fact that because there label nights a lot of new dubplates get dropped and tested out etc.. If they knew that the sets were gonna be recorded and distributed to tom dick and harry then they'd surely have to cap what they play.. taking aqay sum of the magic of the night