Thanks, did my best
Should, I use a Class 10 card, so class 6 card must be supported too.
Harm?! - Not from what I know not at all. Why do you think it can harm your camera?
Thanks, I'll make more test this week using my Nikon D3100.
I shot it at 300mm, so yes, it is the maximum zoom (focal length of the lens). It's VR II, even though the lens is referred to as 70-300mm VR.