Two interesting notes about music download sites...
1. Napster and any other site where you can listen to music you haven't paid for are easily hackable. Those that are prone to such activities might actually pay for music if the download was of a greater quality than that they're wave recorder can acquire for free.

2. Music downloading may return music purchases to the days of the old 45's. This isn't a new thought I know but the historian in me finds it interesting that my father bought Elvis songs one or two at a time and now I'm buying music the same way.