My girlfriend works at a physiotherapy clinic which does running analysis. They use a Nikon J1 to film the client running, and play it back as slow as possible to explain errors in their running gait.
She is not computer savvy and I am clueless with video. Is there a simple playback program out there that can do this as simply as possible. I have tried VLC but it does not play the video, only freezes and continues to play the sound.