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Posted by Bill's News on 12/20/05 22:01
Large Farva wrote:
> I'm using Intervideo WinDVR to caputre video, and I'm just wondering
> about the resolution settings. The settings for 'DVD quality'
> specify
> a resolution of 720x480. Why wouldn't it be standard DVD resolution
> of 640x480? Is 720 better or will there be some funny scaling going
> on if the 720x480 video is burned to a DVD?
If it's anything like the Hauppauge devices, it's able to produce
MPEG2 in DVD compliant files. Regardless of the source material, if
you have to get to DVD compliancy, why not do it at capture time?
Inside the 720x480 DVD frame sits the actual picture which might be
640x480 or something else which is also not 720x480. Depending upon
your player, it will fill the screen of your TV to the farther axis or
it will display the picture in a 720x480 frame expanded to the screen,
with borders showing on 2 or 4 sides.
The Hauppauge devices only capture at: higher than DVD bit-rate
720x480; DVD; SVCD; or VCD compliance. Each of these can then be
played in proper perspective and without further ado via an MPEGISO
player, or PC-TV connection, or "authoring" to DVD.
There is always "funny scaling" and other voodoo going on when we play
1.5 aspect DVD frames on 4:3 or 16:9 TVs;-)
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