The action of the digital camera preloading data into a reserved area of its memory. Certain Nikon cameras feature modes that utilize the buffering of image or video data specific to the chosen mode.With regards to the Nikon 1 camera system, the camera fills the buffer with data before the shutter is fully depressed. When using the Smart Photo Selector mode, the camera stores this pre-recorded data and can access it if the data holds the best shots taken. When using the Motion Snapshot mode, the video captured before and after the still image is captured is stored in the camera s buffer for use in creating the final Motion Snapshot.