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default QT export to iPod vs Popcorn2

#1 User is offline   dvtvfilm 

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Posted 01 May 2006 - 07:51 AM

We tested Popcorn 2 against QuickTime 7, exporting one of our 30-minute programs (5.64 gig) to iPod.

The DEFAULT export mode was used by each program. (nothing was tweeked in any way)

The resulting QT m4v file was 154.2 MB
The resulting Popcorn2 file was 293.8 MB

The resulting QT iPod file was clearer, sharper and more color accurate.

Have we overlooked something regarding PopCorn2's settings?

thanks--


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#2 User is offline   freshburn 

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Posted 01 May 2006 - 09:32 AM

QT exports to ipod using H.264. Popcorn has 3 options, Standard, For TV and High.

Standard uses MPEG-4 compression. MPEG-4 is faster and can support higher bitrates and resolutions on the iPod.

For TV sets the resolution higher so that if the iPod is used on the TV, it will look better.

High uses H.264. This has a lower bitrate which makes the file smaller, but it is also slow.

If you want to Popcorn to export the same as QT, select High and you should see the same results.
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#3 User is offline   dvtvfilm 

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Posted 01 May 2006 - 12:35 PM

Great-- thanks. The "High" setting looks much better- almost on a par with QT, and the file size is likewise similar.

QT still produces a cleaner and much higher-rez image --which is especially evident on animations, graphics and the edges of objects/people in motion.

I might stick with QT to export to .mv4 -- but use Popcorn2 to make my full-sized DVD-disks (which it does very nicely.)

regards

This post has been edited by dvtvfilm: 01 May 2006 - 12:44 PM

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#4 User is offline   freshburn 

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Posted 01 May 2006 - 12:51 PM

Popcorn uses QT to export also, I don't know why you would see much difference. Toast uses a lower bit rate than QT, so that may make a difference.
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#5 User is offline   dvtvfilm 

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Posted 02 May 2006 - 07:07 AM

Don't know much about that...
but here is a comparison of a default QT-to-iPod export along side of a PopCorn 2-to-iPod export
PopCorn 2 using the "High" settings as you suggested.
The "jaggies" and quality degradation in the PopCorn2 render is still quite apparent.

regards

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This post has been edited by dvtvfilm: 02 May 2006 - 07:15 AM

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