Thanks, but it didn't really help, I'm not that dumb, I'm 100% sure that the 25GB Mpeg file I ouputed from Power Director was progressive (I checked in properties in MPC) and it didn't have the flicker (which I am almost certain was caused by the interlacing - it was the top and bottom line of where the black borders start, jumping one line up and down - maybe it was my computer showing the interlaced video incorrectly). But I definitelly fed multiAVCHD a progressive 1080p Mpeg and it spat out a 1080i m2ts. I may have switched something wrong somewhere in multiAVCHD but I kinda hoped you guys would be able to tell me what...