I have an EDR in my car. Let me tell you this. Miss "LEAD FOOT" my wife knows one thing.If she gets a ticket and tries to tell me she wasn't speeding,the first thing I will do is have the box downloaded. Same thing goes for her little blinker issues of just putting them on before she turns. The box helps me,cause now she knows she can't say she wasn't doing what she was ticketed for. The parinoid factor of recording your conversation or tracking you is just something for people to complain about. The Government has been tracking and listening in on you for yrs. Long before 9/11. It's just more noticable now. The box is beneficial ie how hard you were hit by that idiot that ran the stop sign. Just my 2 cents.