Save the legal fees
Perhaps the IFPI should have a word with ex-users of OiNK who would be more than happy to tell them about how excellent the site was. How any album or song you could think of was available in any number of high quality formats in an instant. How it was easy to discover new music through recommendations and how it was totally user-dependent.
Ask any ex-user and I'm sure the majority of them would be happy to pay £5-10 a month for the pleasure of such a 'legal' service. I suggest this is where they should put their money, infact, they could probably ask Ellis to help them with the project.