I agree with that. The time you would spend relistening to the lecture would be much better spent reading your notes from the lecture, retyping the notes from the lecture, outlining the class, reading the E&E, discussing the lecture with your study group, etc., etc., etc.
Also, you absolutely have to get your prof's permission before you record, and if your profs are like my profs, most of them will not give you permission unless you have a very good reason. So, it's probably not an option anyway.