SVCD PAL to NTSC DVD conversion

[|Supreme|]

I'm using tmpgenc to convert. I changed the resolution to 720x480 and put the source and destination aspect ratio at 4:3 even though the video is in letterbox. Seemed to work ok, but video isn't completely stretched all the way to the sides, so its a little off.

But my biggest problem is the audio being out of sync slightly. The pal video is at 25fps and I decided to convert it to 29.97fps and converted audio to 48khz. But the audio is lagging behind a tad. I don't know how to fix this. Any ideas?

[|Supreme|]

So anyone know? I'm wondering why this happened in the first place. Maybe in tmpgenc I should have selected do not frame convert or something. I saw a guide that also said you had to convert the audio.

Also if I want to burn it as a ntsc DVD.. is the framerate 23.97 fps or 29.97fps?

[FulciLives]

Here is what you do ... you convert it to a hybrid format. You want to use the NTSC DVD resolution of 720x480 but keep the frames per second at 25fps. Easiest way to do that is to set it up just like you are doing a PAL DVD encode but then change the resolution from 720x576 to 720x480 ... all other options should be left A-OK although you will need to deinterlace unless the original PAL SVCD is progressive.

After you do the conversion you take the M2V video file and run it through DGPulldown and the output will be a compliant NTSC DVD spec video that will match the original audio although you should convert from MP2 to AC-3 as MP2 is considered a No No for a NTSC DVD. I would let TMPGEnc Plus convert the audio to LPCM WAV then convert that to AC-3 but you don't need to adjust the length of the audio this way.

- John "FulciLives" Coleman

[|Supreme|]

Ok that sounds good but I don't understand how you can keep the framerate at 25fps without compatibility issues for ntsc dvd players. But if it should work then I guess I'm all for it. What is the significance of DGPullDown? It says it can change framerate with most likely no sync issues in audio. So far I'm thinking of that program but to convert framerate to 29.967 if thats possible. Or if it'll work at its current 25fps then might keep that.

I saw a guide that talked about changing the length of the audio file. https://www.videohelp.com/forum/userguides/78178.php Was thinking of trying that too.

I have another question how can you check if a video is interlaced?

[FulciLives]

Ok that sounds good but I don't understand how you can keep the framerate at 25fps without compatibility issues for ntsc dvd players. But if it should work then I guess I'm all for it. What is the significance of DGPullDown? It says it can change framerate with most likely no sync issues in audio. So far I'm thinking of that program but to convert framerate to 29.967 if thats possible. Or if it'll work at its current 25fps then might keep that.

You have to re-encode so that the resolution is NTSC but leave the frame rate at 25fps (although it must be progressive). When you run it through DGPulldown you select the "25fps ---> 29.970fps" option and that makes it NTSC compliant frame rate wise. The nice thing here is that the new NTSC compliant video is the same running time as the original so no need to change the length of the audio.

I have another question how can you check if a video is interlaced?

Load it into something like VirtualDubMod where you can scan the video and do step by step and "eyeball" it.

Take a look at this link ---> CLICK HERE

Also this is another good link to check out ---> CLICK HERE

Good Luck !!!

- John "FulciLives" Coleman