[Tony Mugavero]

I had a similar issue with audio sync issues when transcoding files from FinalCut, and it ended up being related to the variable frame rate output by FinalCut. Check it with the program MediaInfo to verify that might be the issue. I fixed it by exporting the file with a constant frame rate by washing it in QuickTime, then using MainConcept h264 / aac to encode it. Not ideal, but I don’t have Final Cut and was given that file to fix. Try getting it out of Final Cut with a constant frame rate.