[MacDV] QuickTime Screen Size

[Alex]

Steve

The 4x 3 Aspect ratio is standard.
PAL resolution is 720 x 576 which simplifies to 4 x 3 and 3 x 2
NTSC is 720 x 480 which also simplifies to 4 x 3 and 3 x 2

Alex

On 19 Mar 2005, at 14:58, Steve Robertson wrote:

> We've discussed this before, but I'm still a little confused.
>
> Full quality DV is 720 pixels by 480 pixels - a 3 to 2 aspect ratio. 
> it seems to me that - when making a Quicktime movie - you would want 
> to try to maintain that 3 to 2 ratio. Which would give you possible 
> QuickTime screen sizes of 360 by 240, or 240 by 160. yet it seems like 
> everybody recommends Quicktime screen sizes of 320 by 240 or 240 by 
> 180 - which are, however, 4 to 3 aspect ratios - matching the standard 
> TV ratio.
>
> Does QuickTime do something to the video during encoding to change the 
> aspect ratio without squishing the people in the video?
>
> Admittedly, if you export a QuickTime movie as full quality DV and 
> play it in the QuickTime Player, the proportions look a little odd. 
> Maybe full quality DV displays in the wrong proportion on a computer 
> screen and QuickTime is just compensating.
>
> Steve R.
>
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