On the hottest day of the year so far, I mount the camera below the suspension inside the rear righthand wheel and it wouldn't perform well off-road. Severe road shocks aside, the GoPro Hero performs brilliantly when it decides to run! Is it recording? Has it stalled again? These are not questions one should have to think of whilst trying to shoot action movies! The sound's not too bad considering, but it's not what I'm hearing....