Reducing piracy is simple. Restore copyright law to what existed in 1790. The expansion of piracy has not been caused by the consumer becoming evil, but by the content industry being able to purchase favorable legislation from Congress that criminalizes formally legal behavior. In a sense "piracy" is the public relations creation of the content industry to make themselves out to be "victims". Below is a graphic from Wikipedia demonstrating this trend. So if the content industry can create evil thieving "pirates" through the passage of self-serving legislation, the legislation can be modified to eliminate the evils of piracy too. It goes both ways.
Our legal system is meant to provide a level playing to conduct business. It was not meant to provide one group (content industry) special rights while at the same time diminishing the rights of another group (consumer). The consumer, when they purchase content acquire a property right to use that content. The public domain, also has a property right to content! Time to restore those rights.