Hell, if you've sat through the class once, it's not going to be any more interesting a second time listening to it. I think it's a complete waste of time to be recording classes in law school...time that could be spent drinking. Or watching TV. Okay, or studying. Thing is, a recorded class is only going to do you any good if you actually miss it. And still, you can get the notes from a few classmates to pick up all the key material from that class.