Yes I had the same, I had to make sure I used a decent branded Class 10 Micro SD like a Sandisc Ultra or Extreme freshly formatted, playback will appear jittery in the built in screen on higher resolutions it doesn't mean the footage is ruined, it needs to be transferred to a fast hard drive and decent graphics card running on an i5 or i7 chipset PC, Mac or Linux, and the higher resolution videos played smoothly. For low light use the lowest frame rate works best so 30FPS 720p to 1080p , on latest firmware 1.6 I leave most of the exposure settings to AUTO , but you could try increasing EV-+ , try a fixed ISO of 800 or 1600?, or if you are able to change the shutter speed to 24FPS. I set WDR to OFF. Anyone else reading this let us know what you do.