So in PD I imported all then put the first MTS on timeline 1 and the first WAV on timeline 2. Then I did an audio sync which worked very well. After that I scrolled out to the end of the video and split the audio there and pulled the additional audio off timeline 2.
On timeline 3 I dragged the 2nd video - placed where the first video ends - and on timeline 4 I put the remainder of the split audio and synched those. Again it worked like a charm. Then I dragged the 2nd audio file onto timeline 4 and butted it up against the end of the first audio. When I play the recording from start to finish it looks and sounds great inside PD. The syncing is perfect.
Then I went to Produce it. Didn't do anything fancy there, used the mpeg-2 1440x1080/24p profile and that produced the .mpg.
When I play the .mpg it all goes well, audio seems to be synched up nicely with video until it gets to the place where I joined the 2nd audio file to the first. And at that point the audio gets badly out of sync with the video.
What I can't figure out is why does it play perfectly in PD but get out of sync in the .mpg?
If this can't be resolved is there some software that might join the 2 audio files into 1?
Thanks in advance....