What is the punishment for someone who pirates digital files?

It is agreed upon that piracy is theft according to the question https://islam.stackexchange.com/questions/207/where-does-islam-stand-on-internet-piracy However, cutting the hand of someone for downloading a bad pop song seems a little… excessive as it would leave most of my friends without hands. Is there a law suited for those who commit very minor theft or if they commit theft but aren't prosecuted?