Audio and Video out of sync only with 29,970 fps sources!!!

[Jonas_Vedder]

Hi
Well, I must say I use DVD-Lab Pro for authoring DVD's. I have my .m2v movie and audio separately, and then after authoring, all my movies stay perfect, video and audio in complete sync.
But when converting to mpeg2, files that are 29,970 fps, I noticed that the video and audio stay out of sync...but that only happens with 29.970 fps sources! Why is that?
For example, when I have 23,976 fps sources, after converting to mpeg2, i make the pulldown, and it stays fine after authoring, but when I have 29,970 fps movies, that doens't happen.
Can anyone help here?

[Jonas_Vedder]

Anyone out there to help me on this please?

[reboot]

What are you using to transcode audio?

[Jonas_Vedder]

Hi
Well, I use ffmpeggui to convert the converted file (.mpa file) to ac3.
Then I import to DVD-Lab the .ac3 and .m2v files, and like I said, if it's 29.970 fps when I start watching the movie, the audio is in sync with the video, but it keeps losing sync as long as the time passes by...
Why is this?

[reboot]

Assuming your original source is avi, rip audio with virtualdub to .wav, transcode to ac3 in ffmpeggui, then import to dvdlab.
Encode video only (ES Video Only) in tmpgenc.
I have been doing it that way for a very long time, and don't have any sync probs.
Tmpgenc seems to have trouble with some audio, depending on it's source fps/frequency/bitrate, and this may be the case.
Eliminate tmpgenc from doing audio, and it may work.