You will find that some players are better than others when playing interlaced files on screens designed for progressive. 50i to 50P at the same resolution will also have certain issues.Īll that said, I suspect that your main issue with playing the original interlaced footage from an interlaced MP4 file from a USB stick, is what's playing it back. Although, most NLEs, including Edius, aren't so good at de-interlacing. The only thing I can think of is to export your interlaced project as a rendered movie, create a new project, for instance a progressive one that you can't live change, then import your interlaced movie into that. Certain things can't be changed once a project has started.