Re: Live concerts
"a) no one can object to their registered work being licensed at a fee set by a central body - even if they disapprove of the advert/political use it will promote."
Copyright still belongs to the original owner though. This doesn't alter.
b) a bootlegger can claim copyright to an unauthorised recording/photograph - and publish it. A digital search will always show no official original as they will be unregistered by the performers. Even an official recording of the same event will have a different audio/digital signature when compared to contemporary bootleg ones. What rights have the performers to effect a "take down"?
By claiming copyright he would have to demonstrate due diligence in attempting to locate the original recording or photo.
If you make a copy, or near copy, of someone else's recording, you will still have breached copyright. The only exception would be if the original owner could not be located and you could demonstrate due diligence in your efforts. I suspect this would only apply to very old recordings, not a rip of a JLS performance you've made.