Well, it looks like the music industry is pretty serious this time...871 subpoenas with roughly 75 new ones being approved each day.
"In some cases, subpoenas cite as few as five songs as "representative recordings" of music files available for downloading from these users. The trade group for the largest music labels, the Washington-based RIAA, previously indicated its lawyers would target Internet users who offer substantial collections of MP3 song files but declined to say how many songs might qualify for a lawsuit."
Five songs? Interesting interpretation of substantial.