Billion dollar bill for music site Limewire?
3 May 2011 Last updated at 10:44 BST
It was one of the most popular file-sharing websites, where users could swap music and video freely online but Limewire cut out the music industry.
Last year, a US judge ruled that the company and its founder were guilty of massive copyright infringement.
This Tuesday, a courtroom is expected to consider how much Limewire should compensate the music industry.
Caroline Hepker reports from New York.