Hi thanks for the help.
I'm using elements 12. and Windows 8,1 64
and my gopro shooting is in 1280x720 and from my sony nex 6 it is 1920x1080
So in my edit it's 2 black strips on the both sides on the shoots using gopro.
I've been using time laps shooting from my gopro as well i fix them to the proper size in lightroom,