Penguin audiobooks to be copyright-free

From The Guardian: "Penguin is planning to offer audiobooks that are free of digital copyright protection technology, which will allow buyers to play them on any digital device, dismissing fears that they could become the latest target for online pirates. The 73-year-old publishing house is also hoping for a big boost this year after one of its three-year-old titles, a new age self-improvement tome entitled A New Earth: Awakening to your Life's Purpose, was picked by Oprah Winfrey for her book club. Since the TV host chose it four weeks ago, Penguin has sent 4m copies to US retailers of a book that had sold 500,000"