When converting a DVD from PAL to NTSC using this or a similar method http://www.eggshellskull.com/pal2ntsc/ is the resulting NTSC runtime the same as the PAL source?
Anthony
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No difference in runtime. During the conversion, some PAL frames will be merged to create additional NTSC frames, going from 25 to 29.97 per second. However, the player will identify the source, whether it's PAL or NTSC, and play back at the appropriate frame rate, so that 1 second stays 1 second, whether there are 25 frames in that second, or 29.97 frames.
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Thank you for your response.
I was having a debate with someone on another board and I couldn't convince him that the runtimes are the same.
Thanks again
Anthony -
Well, they're not the same if you use the default setting for DGPulldown. The guide writer (and as far as I'm concerned it's a lousy guide) conveniently forgot to mention that you need to tick the "25->29.97" box. Only if you apply that setting and then run the pulldown will both the video and audio lengths be the same. At the default setting the video comes out 4% longer and the audio after authoring won't be in synch. I think you lost the debate.
Originally Posted by filmboss80 -
Originally Posted by manono
During the 'debate' he was given the correct settings. My only error was in my original post here
As I told him, I have used this method (DGMPGDec, Avisynth with various filters, CCE-SP2, and DGPulldown) many, many times and never had a problem with a/v sync issues.
Anthony -
I actually forgot about the flaw in the guide when I referred to it here.
Then I hope you aren't following that guide literally with some of its other recommendations, such as applying deinterlacers haphazardly. -
Originally Posted by manono
If you haven't written a detailed guide on converting PAL to NTSC, you should truly consider doing so.
You, John "FulciLives" Coleman, and many others have posted a wealth of helpful information on the subject but it would be great to have an accurate detailed guide to turn to.
Anthony -
Hehe, sounds like you already have it wired and don't need any guide at all any more.
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