VERY IMPORTANT NOTE ABOUT MY POST ABOVE:
THE FILE “Final Cut Pro 6.0 Prefs” IS NOT into Package Contents… IT was a writing mistake from me. The file is into: Your user name/Library/Preferences/FCP User Data.
Sorry.
By the way!!! Some news. This problem happened to me again TODAY. Do you remember my “Project One”? (Check above. I am talking about a multiformat project) Well… it was open again, AT THE SAME TIME THAN OTHER TWO different projects, one of them HDV and the other one DV.
So I went to my own solution and it worked to me again…
My preliminary conclusion is:
This issue is related or caused by some video characteristics combination (field dominance , for instance; mixing formats maybe, or even a single corrupt file )
Another thing: I just realized writing this, about another very similar issue: sometimes you have a single clip which is part of a complex editing time line. When you master your video, just right there in that clip, the audio goes out or sounds tricky. No matter what you do (re converting, exporting, recapturing, or whatever to that fu.. clip) the “thing”is going to still forever in your MASTER TAPE, PRINT TO VIDEO AND SO ON (Hey… NOT IN your .mov file, of course)… until you apply to that single clip a “shift fields” filter.
I hope my long hours, even days trying to fix this last issue some time ago, will be worth for more people besides me and my coworkers.
GOOD LUCK