A quantity of frames that are counted in film, video, and audio per second. Frame count should not be confused with frame rate or Frame Speed, though these words are sometimes used interchangeably. Frame count actually has nothing to do with speed. It only pertains to how many unique frame numbers exist per unit of running time (not necessarily real time) of video, film, or audio. Drop Frame Time Code is a unique frame counting method that exists to keep frame numbers aligned to the reality that in NTSC color video the Frame Speed is actually only 29.97 frames per second. This way the time code numbers stay in agreement with real running time.