Thanks for all the help!!!
I think I´ll begin to understand things now. But one issue
remains …
I´ve changed the value in the playback offset and in works
now but just on the first video in the timeline.
If I have two separate video clips on the timeline the other
one will end up 1 or 2 frames off?!
Have I missed anything??
By the way, I use AJA kona LHe card.