Problem encoding MPEG4

[Oldspiker]

Hi:

I've been encoding MPEG4's to DVD format using the DVD ffmpeg target format. This last time after I created the encoded files and tested it using my DVD Player on my Mac I noticed the audio didn't match up with the video. When watching when people speak, the audio started before their lips moved by at least 1-2 sec. I've never run into this problem before. Is there a setting that needs to be set differently? I also noticed there was a warning message that stated "buffer underrun" after about 2-8% on the progrees bar.

Any advise would be appreciated. Thanks

[Case]

If the loss of sync is constant, i.e. the same time difference throughout the movie, then you can re-mux with a time-offset in milliseconds. See ffmpegX>Tools tab>Mux.

Encoding with "Decode with QT" option activated might improve syncing.