File exchange portals and programs (LimeVire, BitComet, DC++, etc.) are the best and fastest way for you and your friends to exchange films, music and even your homework, but be very careful when using file exchanges programs and watch out not to receive more information than you want. 

Files within these programs can have deceptive and/or erroneous names, therefore when searching for the latest video of Britney Spears and downloading it, you can discover that it is a video of another singer or, even worse, the materials found may contain pornographic or violent scenes. Therefore be very careful with the information you download and take care not to break the law.

There are many very low quality files in these programs, so consider buying the particular materials legally in order to receive what you really want in the quality you desire.

In file exchange programs it is also very easy to download a computer virus or another program that may harm your computer and its software, so buying music and films legally will help to protect your computer from any harmful programs, as well as from unwanted and low quality content.

Legal aspects of file sharing can be found in Law on Copyright .