There are a couple of options for reviewing your video once you have finished recording. The first, and probably the easiest, is to press the Image Review button to bring up the recorded image on the rear LCD, and then use the OK button to start playing the video. The Multi-selector acts as the video controller and allows you to rewind and fast-forward as well as stop the video altogether
If you would like to get a larger look at things, you will need to either watch the video on your TV or move the video files to your computer. To watch low-res video on your TV, you can use the video cable that came with your camera and plug it into the small port on the side of the camera body (Figure 10.3). To get the full effect from your HD video, you will need to buy an HDMI cable (your TV needs to support at least 720HD and have an HDMI port to use this option). Once you have the cable hooked up, simply use the same camera controls that you use for watching the video on the rear LCD.
If you want to watch a video on your computer, you will need to download it using Nikon software or an SD card reader attached to the computer. The video file will have the extension .avi at the end of the filename. These files should play on either a Mac or a PC using software that came with your operating system (QuickTime for Mac and Windows Media Player for PC).