Andy - I am not a lawyer, but I can't see how refusing to release old recordings would ever be classed as a restraint of trade.

I am firmly on the side of those seeking to get the Bulmerised recordings released, but I think we need a stronger case.

Unfair contracts can in some circumstances be overturned, but it would probably be difficult and costly, especially for contracts made over 20 years ago. Since he doesn't appear to paying royalties in some cases, there may be possibilites of breach of contract, but once again, it is one for the lawyers.