So this is what is happening: I convert avi to MPEG2 with cucusoft's Avi2DVD,and theren is't any problems there. Vid and sound ae both ok, about 40 min in lenght. Next, I load mpeginto DVLAB pro, and demutiplexit with it. But when it finishes demux a new window openinwhic says : "wrong FPS ; size 720x576 FPS:23.98 aspect: 16:9 ; to add 24 frames you need to enable pulldown first" . So I start pulldow,and when it's finished I get audio which is 4 min's lenght but vid is 48 min's. I really don't know where is te prob. Thank you for the help.