We recently listened to the first Harry Potter book (Harry Potter and the Sorcerer's Stone) as a family after picking up the book on tape set at Goodwill.  I think Elliot and I were the only ones to make it through the whole thing.  Finn fell asleep as we were listening to last chapter while lying in bed, and Lisa missed a few different parts due to being distracted by other activities.  Elliot really enjoyed it.