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oldiexyz
6th January 2004, 13:15
Hi specs,

a music DVD I just bought ("James Last - Gentleman of Music") contains two audio tracks: DD2.0 (224 kb/s) and DD5.1 (448 kb/s).

The DVD is of type DVD-5 and not even encrypted (!!!), but filled with user restrictions (e.g. unskippable intros, no time display on some stand-alone DVD-players etc.).

The DD2.0 sound is more or less in sync with the video, but the 5.1 track seems to be about half a second faster!

I know that I can get rid of the restrictions by "copying" the DVD using some of the here and elsewhere mentioned tools, but do you have a clue how to resync the Video / DD5.1 track? Is there a free tool that can remux the (delayed) AC-3 audio streams and the video?

Thanks in anticipation, have a good year!


I.

etiRkca
7th January 2004, 03:58
Most muxers have the ability to take the delay of an audio track into account because it is a very common occurrence among DVD videos. For example, my recent rip of Matrix Reloaded produced a demuxed AC3 with a delay of 100ms.

Here's how to mux the video/audio files into a container:
Please note that I use the Matroska media container (*.mkv) because it is container format I am most comfortable with.

1. Obtain Bunkus' outstanding mkvtoolnix (http://www.bunkus.org/videotools/mkvtoolnix/). The download contains a nice GUI frontend for mkvmerge. Extract the files to any folder. For simplicity, my folder will be C:\mkvtoolnix\.

2. Follow the guide here (http://www.bunkus.org/videotools/mkvtoolnix/doc/mkvmerge-gui.html) , making sure to pay special attention to section 3.3, where it explains how to set up the delay time in milliseconds for the audio so that the video and audio are properly synchronized.

-Kevin