I think it is great that so many universities and professors are wanting their students to learn so much that they are learning new technology in order to do so. The benefit of this technology is that these students have the ability to go back to a conversation that was had during class to clarify a question that they have on their assignment. In the past that clarification would have to wait until 1. the professor was available to email you back or 2. the professor's office hours. Often times college students do not begin working on assignments until late at night. Now they can still complete assignments at their own time but they have access to the information from class to refer back to if they have a question.
I know I would have loved to have lectures and class discussions recorded when I was in undergrad! What a great use of technology in the classroom.