ilovewaterslides said:

Finally! I have it, i noticed two problems with the French audio track.

...

And the audio goes out of sync at the end.

I investigated, and found that side 4 of the french THX laserdisc was out of sync... I put both english and french soundtracks on Audacity, to find the exact delay; I sync'd the french track with the english one, when no dialogs are present, and I saved the french track... that was out of sync for dialogs... then I tried to sync "by eye" the dialogs, but the effect was too much out of sync...

At the end, I reached a compromise, so both the dialogs and sound effects are out of sync (one positive, one negative), but the result is better than before (where both were off sync of about 700ms...)

Here you are a rough test clip, just to hear if the sync could be tolerable enough:

SENDSPACE (10MB)