[SBP]

Hi -We also noticed sync errors matching between material supplied as part of AAF and original production sound recordings. We went someway down the road of tracing the issues and sending the information that we found to AVID. -this is some 2 years ago now. -the problem was still in existence eairly this year MC6+PT10. -I don't know if it is corrected in MC7/PT11.

Initially production sound was being recorded in such a way that production recordings did not start hard on frames -but even when we corrected this not all of the sync errors we saw when matching back to original sound files were corrected.

We found that it was also important to stop the AVID media composer from re-rendering any files when it makes the media for the AAF -a direct copy was fine -however if the AVID media composer re-rendered -to change bit rate or file type or whatever -then we would often see large and variable sync offsets when matching to the original production sound -and the production sound was clearly OUT OF SYNC. -in these cases the AAF audio was IN SYNC.

The work around for us was not too arduous. [no re-rendering of files] -once we had it sorted .

All the best

Bruno