Basically Bush wants to stop all music and other forms of "creative downloads." The article from pcworld.com explains it in more detail:
U.S. President George W. Bush Monday signed into law a bill designed to increase protection of intellectual property (IP) such as software, films and music by raising penalties for infringement and creating a national "IP czar.
Some public advocacy groups had opposed the bill, stating that its penalties were far too harsh and that it didn't balance users' rights and concerns over those of major software, media and pharmaceutical companies. "The bill only adds more imbalance to a copyright law that favors large media companies. At a time when the entire digital world is going to less restrictive distribution models, and when the courts are aghast at the outlandish damages being inflicted on consumers in copyright cases, this bill goes entirely in the wrong direction," said Gigi B. Sohn, president and co-founder of Public Knowledge, a Washington, D.C.-based digital rights group, after the passage of the Senate version of PRO-IP in late September.
Even the DOJ came out against certain early provisions in the bill that were later struck, namely that they "could result in Department of Justice prosecutors serving as pro bono lawyers for private copyright holders regardless of their resources."Full article can be found at: http://www.pcworld.com/businesscenter/article/152214/bush_enacts_proip_antipiracy_law.html