Hi there I have one movie burned in two diferent DVDs and diferent ways. First one is in PAL version and the other is in NTSC. I've noticed that the PAL video was better (visual quality) than the other, in NTSC. PAL version was dubbed with portuguese audio, but the other one, NTSC was in english and original sound. So I thought to make a DVD using the best video (PAL) and the original sound (NTSC). First I ripped both to my HD using DVDDecrypter. Using DVD-Lab I striped out VOBs to elementary streams (MPV and AC3). I put together that MPV video (PAL) and the AC3 audio (from NTSC source) and expected for result. As you already knew audio and video synchronism had gone... They started well, I agree, but they become far from each other along the time... That it because the PAL framerate of 25 fps and NTSC framerate of 29.97 fps, I thought So, I used pulldown 2:3 to change 25 fps to 29.97 fps. Time duration of PAL video is 2h:03min:10s and NTSC is 2h:09min:20s. When pulldown had finished its work the video result is same time duration os NTSC video. Then I said, Bingo, it works! But now I've got another problem... DVD-Lab is refusing to compile the result video claiming the vertical frame size. In fact, my project is PAL, with 720x576 resolution, but video framerate is 29.97. Exact words of DVD-Lab is "Wrong video vertical frame size". If I change resolution of the video or change project properties, the lost of correct proportion may occur... So what? Did I make the right thing? Pulldown is the correct answer for that problem? Is there another way to do the job? Is there a workaround to force DVD-Lab to do his duty? Thank you all guru guys
Perhaps you should just time stretch the NTSC audio to make it fit. (by a factor of 23.976/25) Seems to be the cleanest method. Use an audio editor such as Audacity, or Besweet may have some presets for this.
I'm not clear that you changed the resolution to NTSC. I've done not quite similar converting PAL DVD to NTSC opening an Avisynth script in Hc_Gui to encode. # LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\DGDecode.dll") directshowsource("C:\Documents and Settings\Superuser\Desktop\_dgindex\thick.demuxed.m2v") smoothdeinterlace() LanczosResize(720,480,0,0,720,576) converttoyv12 The output is 720x480 25fps. Then pulldown from 25 > 29.97 and muxing the audio with Muxman. Of course, I was reusing the PAL audio.
Thank you davexnet for your suggestion. I think if I stretch the audio to fit it would sounds bass (grave), differently from the original. Also thank you you too, attar, for your reply. I did not change the resolution. PAL is 720x576 and I kept it. But when I run pulldown I got a 720x576 res and 29.97 fps into the same file and, for this reason, DVD-Lab refused to compile it. DVD-Lab expect 720x576 AND 25 fps to work. But I've already got a workaround: I used DVD Patch to edit M2V file so I could change just the header of the file to 720x480. Doing that, I could trap DVD-Lab and all had gone well. Thank you guys
I've tried the patch method in the past and got a playable DVD without re-encoding - but the quality was not acceptable - it was pixelated and out of sync (but I don't have DVD Lab, so that may be the reason)
Even still, you end up with a non-standard DVD. May or may not be an issue. I must admit I never tried Audacity's time stretch function. Does it degrade the sound that much ? Makes it kind of pointless, if so.
