NTSC > PAL - Help Please!

[bgtrix]

I have NTSC 29.97i DVD video that I have to convert to PAL 25i DVD. The problem is that this video is in my opinion originally recorded at 29.97 and the Pulldown method wont work. Any suggestions? Does anyone of you guys has a workflow how to do this conversion?
I tried some AviSynth scripts but they all failed, I tried to remove pulldown, but obviously there is no pulldown. Help please...

[jagabo]

Most PAL DVD players and TV can play and display NTSC discs so you don't really need to convert. But if you must, and the source is really 30i, the best way is to perform a smart bob to 59.94 frames per second, decimate to 50 frames per second, then re-interlace to 25i.

Mpeg2Source()
QTGMC()
ChangeFPS(50)
SeparateFields()
SelectEvery(4,0,3)
Weave()

[bgtrix]

Most PAL DVD players and TV can play and display NTSC discs so you don't really need to convert. But if you must, and the source is really 30i, the best way is to perform a smart bob to 59.94 frames per second, decimate to 50 frames per second, then re-interlace to 25i.

Mpeg2Source()
QTGMC()
ChangeFPS(50)
SeparateFields()
SelectEvery(4,0,3)
Weave()

Thanks a lot! I really need to convert this video. I will try this script immediately...

[bgtrix]

And One more question...

Does 29.97i to 25i conversion affects runtime? Is it recommended to change runtime or not?

[jagabo]

Does 29.97i to 25i conversion affects runtime?

The method I outlined does not change the running time.

[bgtrix]

OK, I'm on my way... just downloaded required AVS plugins

[jagabo]

QTGMC() is the best smart bobber but it is very slow (and a bit of a pain get set up since it requires som many other filters). Try using Yadif(mode=1) instead. It's much faster, though not as good.

[bgtrix]

Yeah... I just faced how slow is QTGMC. I will try the other one... Thanks again!

[poisondeathray]

You can use a faster preset for QTGMC; the default is "slower"

eg. QTGMC(preset="veryfast")

It's still slower than yadif, but still better quality

[manono]

Don't forget to do the resize for PAL while you're at it. Right after QTGMC is a good place.

[jagabo]

Ah yes. I forgot that step!