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Topic: How do you tell if a DVD proper widescreen?
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David Kilderry
Jedi Master Film Handler
Posts: 963
From: Melbourne, Victoria, Australia
Registered: Feb 2006
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posted October 24, 2006 11:30 PM
Aspect ratios on DVD's are a real trap; it helps to know what process the film was originally shot in.
Seven Brides was shot in Cinemascope by MGM. Early scope releases were in the 2.55:1 aspect ratio if they were straight 4 channel magnetic. Optical tracks began to be included around this time for theatres that could not afford the upgrade to full magnetic stereo sound. These combination magoptical 2.35:1 prints essentially dictated the scope 2.39:1 aspect ratio we have in cinemas today.
The two main aspect ratios used today are 1.85:1, called widescreen, and 2.39:1, called scope. About 65% of all theatrical releases today are in scope.
A 16 x 9 television screen equates 1.78:1, so you can see that even the narrowest theatrical format 1.85:1 is cropped on widescreen TV's. Why they settled on this format is beyond me.
Why is Super 8 scope and 16mm scope at 2.66:1 aspect ratio? It simply magnifys the standard Super 8 or 16mm 1.33:1 frame by a factor of two on the horizontal. 35mm scope film uses a taller 1.2:1 frame to capture the squeezed image.
Just to complicate things further, most scope releases are actually shot on Super 35 these days and optically squeezed during release printing!
Anyway, the aspect ratio on a DVD will tell you what master or pre-print material the DVD copy has come from. It cannot be relied upon to tell you whether it is maximised for 16 x 9 screens.
Personally letterboxing drives me crazy. As a purest I like to see the entire image filling the screen, hence I buy 8, 16 and 35mm films and go to the movies often. On TV I am generally happy to put up with a good pan and scan.
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