As far as the warranty goes, I didnt do the extended one only because the camera is kindda cheap in price. Every six months a new better camera is out plus I still have 2 older one that I can go back to if needed. Sorry I cant answer your question in depth. The warranty is only good for a year so I just kept the box and bill of sale. You dont have to register the warranty for coverage as long as you keep what I said for a year. If something does happen, call 1-800-645-6687 and they tell you what to do if its still under that year.