I think the whole concept of owning an idea is rediculous. If I were to copy a song or movie, I am not taking anything from anyone. The owner of the song still has the origional. It's no different than someone building a replica of a Ferrari, or planting seeds from fruit they bought in the store, it's just alot quicker and easier. If I could copy watermellons as quickly and easily as songs and movies, would I be getting sued by farmers?
Also consider that if I hear a song and have a good memory I can store a copy in my mind and play it over and over. To protect intellectual property, one would have to exersize thought control. Stealing is taking something that doesn't belong to you. Do my memories not belong to me? I have lots of songs and movies memorized. As far as intellectual property goes, seeing or hearing is owning. I think if someone doesn't want their "art" copied and passed around they should just keep it to themselves. Keep it off the radio, off the net, off of CDs and DVDs, and off the TV. If you absolutely have to share your "art" for profit just stick to live preformances.
One could argue that file sharing causes "artists" to loose money. To download a song from someone online doesn't cost the "artist" anything, in fact, it saves the record company the cost of having to print and ship another CD. It also gives the downloader the opportunity to evaluate weather the CD is actually worth buying or not. I would never consider buying a CD or DVD that I havent heard or seen yet.
Sharing is supposed to be a good thing. I can share the contents of my refrigerator but not the contents of my own hard drive.
None of this is about art. It's all about money. Art will always exist weather money is made or not. Art would be better off without copyrights. What is art without freedom? Without copyrights, everyone is free to take another's idea and build on it and improve it. I'm not saying anyone should break the law, only that the law is rediculous and unenforcable and counterproductive.