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There are currently two standard TV aspect ratios, 4:3 and 16:9. Chapter – In DVD-Video, a division of a title. Technically called a part of title (PTT). Component Video – A video signal split into three parts: luminance and two color signals (marked as YPbPr). It provides the highest resolution video, but cannot be processed by all television sets. Composite Video – A single video signal that contains luminance, color, and synchronization information. NTSC and PAL are examples of composite vide