I mean, look at what Steam has done to the video game industry; or iOS/Android app stores. When it's easier to buy the copy pretty much nobody is going to bother stealing it.
With a digital good you can copy over and over, and never subtract the original author of its own copy..
The industry itself tried to implant this wrong concept on the peoples mind so they would think its the same.. only its not..
i think the best approach from them would be to accept that new reality in the digital age.. and try to collect money from good customers, the buyers, and try to collect from the people that have made copies of the work by stating they have obligations, and expenses to do that work, and ask for the users the support..
i think thats pretty much what microsoft did with windows.. trying to fight with a possible customer treating him as the enemy, will only hurt them in the long term..
They need to think with a new perspective, not with the same ideas as the XX century.. it will only cause them more damage than good.. people will see them as the enemy, much like we are seeing now