Information on file sharing.

In order to help me make my advert I have been looking at what file sharing is and I found the following information on a website, this information has proved useful in telling me exactly when file sharing is illegal and why it is illegal, i have used this information in order to help me write the voice over for my advert.
Is file sharing illegal or legal?
Question:
Is file sharing illegal or legal?
Answer:
Disclaimer: Computer Hope is not meant to be used as legal advise or representation. This document is general information to assist users who've asked this question on our site.
Is file sharing illegal?
No, it's 100% legal. In no state in the United States or in any other country is file sharing illegal. However, if you're sharing content that is protected by copyrights to other users that is illegal. Below are some good examples of where file sharing becomes illegal in many places around the world.
Downloading or sharing a copyrighted movie.
Sharing copyrighted songs (music) to other people who have not purchased those songs or downloading songs from other people when you've not purchased that song.
Sharing or downloading computer software (programs, games, etc.).
Downloading or sharing a copyrighted TV show or program.

Is P2P programs such as DirectConnect, eDonkey, Kazaa, Limewire, Napster, Delgado, etc. or bittorrent legal?
The programs and/or technologies behind file sharing are not illegal, it's data being shared that may be illegal. Using bittorrent or other file sharing programs to download a software patch or update a game demo, movie trailer, etc. is legal. However, using that same program to get a new hit song or a movie still in theaters is illegal.
What could happen if I get caught?
This all depends on your local laws. However, good example of what has happened to other people include: fine for each song, movie or software you've downloaded or shared. If you've downloaded hundreds of songs or other files this could be a large fine if found guilty. In Hong Kong a man has also been sentenced to a maximum of four years in prison for sharing files on a BitTorent website.

This information was taken from:
http://www.computerhope.com/issues/ch001042.htm

I have also found a website which explains file sharing in a clear and concise way and backs up the information above. the following paragraph was taken from:
http://www.bsu.edu/library/article/0,1894,95111-6558-14706,00.html

The Recording Industry Association of America [RIAA] is an umbrella organization that represents, among many other things, the music industry's concerns about the distribution of music files via the Internet. This distribution of files is known collectively as file sharing, and the RIAA's concern has to do with illegal peer-to-peer [P2P] audio file sharing. P2P audio file sharing is illegal because of the U.S. Copyright Law. Owners of a copyright are guaranteed six exclusive rights under the Copyright Law and two of those exclusive rights are the right to control copies and distribution of those copies.