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Is there a tool I can use that can merge MP4 files without throwing the audio out of sync? I generated some MP4 files from a DVD using AVIDemux but whatever tool I try to use always ends up throwing the audio out of sync with the video. The further you get into the video the further off-sync the audio is.

By themselves the MP4/AAC videos have perfect audio-video sync.

later tonight i might try http://www.headbands.com/gspot/ to examine the file before and after to see if anything changed in the media format.

djangofan
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1 Answers1

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Avidemux should do it without problems, which one are you using?

Try the latest SVN build MuldeR builds, I've never had a problem of not synced audio with it.

Anyway, as the container is mp4 mp4box may come handy. I suggest you use the latest development build (0.4.6 at the time of writing). If you need a GUI frontend for it, take a look at YAMB or My MP4box GUI.

I you don't mind the container, I suggest Matroska (it's quite flexible, scalable and adds little overhead as a container). Use MKVToolnix if you decide to use that container.

Xandy
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