DVD COMPATIBILITY - Part 3 : Format Aspect Ratio

Views 3 Likes Comments Comment
Like if this guide is helpful
This Format Ratio Guide will help Ebayers to understand easly TV & DVD format issues.

The motion picture industry convention assigns a value of 1.0 to the image’s height, thus, an anamorphic frame is described as 2.40:1 or 2.40.
In American cinemas, the common projection ratios are 1.85:1 and 2.40:1.
1.33:1 was used for all cinema films until the 1950s. By a strange coincidence 1.33:1 is the screen ratio of standard television broadcasts.

When television became a threat to movie audiences, Hollywood gave birth to a large number of wide-screen formats: Cinemascope, Todd-AO, and VistaVision (to name just a few). During the 1950s the 1.85:1 aspect ratio became one of the most common cinema projection standards in the U.S.A.

So which result on your TV... I think some pictures are better like 10 pages of (hard) technical explanation:

Most video DVDs include a data marker that automatically selects the best aspect ratio for the video to be displayed. This way, the full area of a 16:9 widescreen TV set can be utilized without changing the resolution of video DVDs. However, sources wider than 16:9 (e.g., 1.85:1 or 2.35:1 aspect ratios), must still be letterboxed to the 16:9 frame with black bars (like show on pictures).

DVDs with a 16:9 aspect ratio are typically labeled anamorphic widescreen, enhanced for 16:9 televisions, enhanced for widescreen televisions, or similar, although currently there is no labeling standard. Otherwise, the movie will only support the standard full-frame display and will simply be letterboxed.

If you found this guide to be informative or helpful, please click the "YES" button below, your vote is appreciated.

Have something to share, create your own guide... Write a guide
Explore more guides