Free redistribution of media, may that be audio or video, is kind of appealing to the biggest percentage of humans, which are the poor or middle-wage families.
Without being able to afford the full price of a CD/DVD, in order to enjoy the latest movie or album, they endorse the pirated version, and they enjoy it as much as they can.
It would be better if the album songs and movies were totally free or as cheap as possible.
Say you set a price of $30 for an album. Fans, about 10,000 people, may buy it. So the artist gets about $50,000 worth of cash for their creation. Now imagine lowering the album price to $5. Fans, and a lot of other interested folks might bring in the number to 100,000 or even more! That means $500,000. It's simple, you do the math!