Just the facts..
Regardless of the use they are put too downloading any copyright material and using it without payment is a breach of the copyright act.
The copyright act is a law and severe penalties can apply.
This link was supplied by another user:
Dont think it matters the amount of songs downloaded, if you actually get in trouble for using limewire it can happen at any point after one song or ten thousand songs. I read somewhere once though if you own the cd the song is on you are aloud to have a backup copy on your pc anyway.