I heard on the news this morning that in approximately 8-10 weeks, the recording industry is planning to start filing lawsuits against individual computer users that download and share substantial music collections online. They are going to the file-sharing companies (Kazaa, IMesh, etc..) and by law, the companies are supposed to give over the names of people who are doing the most sharing.
Here's the link to the article on cnn.com-
Recording Industry Suing Individual File-Sharers
Oh yeah...I forgot. There is no specific number of files that constitute substantial sharing....