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exporting to pal dvd from progressive source
Hi everyone,
I shot and edited a short stopmotion film created with a digital stills camera. My original files were jpg sequences, which I converted to quicktime animation uncompressed files in combustion for final editing.
As my source is progressive, when I exported the final dvd from premiere, I chose “Pal progressive” in my settings.
It looks fine on television monitors and most projectors. However, on some projectors, the dvd exhibits some sort of error. Black scanlines appear whenever there is motion in the frame. As though a field is “missing”.
I was told that if I export the movie to avi uncompressed, and encode the mpeg-dvd outside of premiere this problem disappears.
I was wondering if I am misunderstanding something about progressive and interlaced frames?
If I work on a pal-dv projects in premiere, does premiere interpert all footage as interlaced even if the source was progressive?
should a final pal dvd be encoded to lower field first interlaced frames regardless of the source files?
Any information will be appreciated,
many thanks,
Jon -
4 Replies
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I’m gonna take a wild stab at this…
DV in a Premiere project is an intermediate codec, and unless I’m mistaken, your timeline is converted to interlaced, but your final output always depends on what rendering settings you are using.
Now, anytime you are putting progressive on a DVD you are always taking somewhat of a chance that the DVD player will have some issues converting it back to interlaced, if the player itself isn’t progressive, so I have a feeling that it has more to do with the player than the projector.
Vince
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BTW, are they working in a DV NTSC or a DV 24P project ?
Vince
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Thanx vince. I don’t know about ntsc or 24p. The standard here in Israel is Pal so I work exclusively in it…
Is there a big difference between encoding to dvd straight from the premiere pro’s mainconcept codec, and between exporting to avi uncompressed, encoding to mpg with the standalone version of mainconcept and then authoring to dvd with encore or some other authoring program?
And if so, should the avi uncompressed be progressive and the mpeg-dvd lower-field, or should both of them be lower-field first? -
If you are really going to go with the progressive option, just make sure that every step of the encoding is progressive, but going through AVI uncompressed shouldn’t make a difference.
I honestly only use progressive when I work in HD, and never when I go to DVD because of other issues that I’ve noticed with some cheaper players such as jittering and artifacts, so maybe someone else can confirm that working with progressive in a DV NTSC project doesn’t affect things in your final render.
Your settings should also be set to progressive in your Mainconcept settings.
Vince
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