Custum converting into AIC doesn`t work right because the sound and video is many seconds out of sync.

Video/Audio sync

The video/audio sync is a playback problem - its just your Mac not keeping up with the video.

Here's our article on the issue:
http://shedworx.com/hd-information/audio-video-sync

My Mac keeps up with all the

My Mac keeps up with all the videos after standard converting.

The only thing I customize is the framrate from 25 to 30 fps.

My Mac is playing back all videos fine with 30 fps and the AIC codec - but not the ones from Voltaic with custom converting.

Please, there must be another reason for this issue.