Yes , i do have 3 full lenght AC3 5.1 tracks : one is 448 Bps ,the other two 384 Bps , and main movie is 4,568,766 Bps.
I tried to reduce first AC3 track to 384 Bps , but it didn’t help.
It has happened before that i was getting the ‘video bitrate too high’ message , i reduced video quality and it was OK ,
but it is first time i get that ‘muxing bitrate too high’ message …
Thanks!