I'm especially curious to hear if it was patents (someone claimed to own our process) or copyright (someone caught us making a "social music/video" site).
It was a social music site, it stretched fair use within reason, but we would have had to strike deals with the major labels to be fully functional. We ended up in a meeting with Hank Barry (CEO of Napster in 2000) and he straight told us that there was no way we could both do business with record labels and be profitable.