I formatted the cards using exFat with 8192K file allocation sizes (since the video files the cam captures are normally 6500K to 6700K) this allows for one file per allocation unit and should make for the quickest file access. I did not use quick format, in order to make sure the entire card was truly formatted. All issues I was experiencing seem to have subsided. Neither cam has stopped recording and there are no gaps in the recording, also I have not needed to restart the cams or cycle power to them. I will up date if the issues reappear.