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NTSC is just the frame rate (29.97), number of lines (525), and the refresh rate (60Hz) essentially. That makes sense to me.. thanks for that clarification. One question to add to that though, since I can't seem to find the info anywhere, but are there the same amount of lines (525) in a 4:3 and 16:9?

I know the differences between 4:3 and 16:9 ratios and how either or get translated onto either size display, but what I'm not understanding is what NTSC has to do with the two different aspect ratios. ie: If I have a DVD that is formatted at a widescreen (16:9) format and send it to a widescreen di...