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Non-Drop

Refers to Non-drop frame time code (see WFTD archive Time Code and Drop Frame Time Code): The method of time code computation where there are 30 numerical frames per second of video. In color NTSC (see WFTD NTSC) video there are actually only 29.97 frames of video per second. In a mathematical hour there would be 108,000 frames (30 frames per second x 60 seconds x 60 minutes). So, a mathematical hour of video is 108 frames longer than an hour of reality video.

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