If you are a fan of Metallica, you should not be angered by their demanding rights to their intellectual property. They write and produce music in order to make a living. While I am sure they are financially sound, they do deserve the right to profit from continued production of music which enhances the lives of their fans. You simply cannot and should not expect them to continue working for free. That being said, the music industries claims that Napster is costing them money are ridiculous.
Record sales are up.
Most people use Napster to preview music before going to the store and buying the CD, or ordering the CD online. Basically, companies that enforce copyright laws. I do not view Napster as some great evil entity, which will eventually destroy the entertainment industry. In fact, I view the company as an indispensable marketing tool for music groups and the music industry. Increased exposure will increase your fan base and provide your current fan base access to songs they might otherwise have missed.