I'm not able to maintain sync between sound and video when encoding 720P59.94 sequences (avi or mov) to 720P 59.94 h.264 Blu-ray (standard PrPro export settings). The sync is lost gradually, and at the end of a 42 minute clip, is off by more than a second. In trying to chase this down, I noticed that the exported elementary video file is longer than the source sequence by about 1 frame per minute. The elementary sound file (Dolby or PCM) appears to be the same length as the source sequence.
Although I first noticed this in Encore (Blu-ray project), an import of the "encode" files back into Premiere Pro confirmed the situation.
I checked very carefully to ensure that my sequence settings and export settings are consistant - 1280x720 P 59.94.
I don't see this sync problem with the non-blu-ray h.264 (multiplexed) encode, and I don't see this problem with the mpeg2 blu-ray encoder.
I'm interested to know if this issue is unique to my setup, and if not, if there's a fix or workaround.
I'm running the latest versions of software -
Adobe CS 6.03 (monthly account)
Kona LHi 10.3.2 (up to date)
win 7, i7, 16G ram
Thanks...Ben