Luke Valentine, I have tried wikis baseline3.0 preset. I´m now comparing different files with bitrate viewer: http://www.winhoros.de/docs/bitrate-viewer/index.html I do not know if it shows things properly, but right now I´m having problem with 30fps file which looks like it´s avg bitrate is lower than what I have encoded before/these trailers here but it´s still jerky. And yep..I noticed that you have set resolution and hit keep aspect ratio for that preset I´m not that Noob