I'm listening to it as I drive to and from home home to school home. There was a huge accident plus construction (plus labor day weekend congestion), and i just had to turn it off at that point because I a.) couldn't focus on it, and b.) couldn't deal with the audio book reader, who has a talent for making Thoreau's words become like those of a petulant child.
I have a paper copy too, so I know that it doesn't take that much effort for him to make that happen.
Thoreau's sort of a weird figure for me, because he does say a lot of things i agree with, but he then often takes them to a logical extreme before he's happy with them. Plus, it doesn't help that he brags about how little money he spent on his Walden Pond digs, but neglects to mention how much time he spent at Ralph Waldo Emerson's house mooching food and other creature comforts. In fact, he neglects to mention his little cabin was on Emerson's land (He says that he is "squatting", which is a total lie).