Aside from the thread Todd pointed you to, you might perhaps care to provide exact render settings and system information.... Sorry to say so, but you're fumbling in the dark and seem to have no idea what you actually are doing, what CoDecs are and what's necessary to play a file in realtime on a computer. It's not an AE issue, it's your lack of knowledge of these basics on a much more general and broader level.
First, thanks for the help. I actually did stumble across the solution. It was the CoDec not being set correctly. My video camera is a GoPro Hero 2. I noticed that there was a GoPro CoDec. When I selected that, it rendered and playback was perfect.
I'll have to read up on the part about AE not meant to render the final move file, as that is how I intended to use it.
Your comments are spot on, I'm new to this level of video editing and new to AE. I realize I have a lot to learn, but part of learning is getting help in the forums.