Digital photography

You can use any frame rate, shutter speed, picture style, aperture (and so on) you like, iMovie is not going to care weather it is being given NTSC standard def footage shot at f/16 or high def PAL shot in black and white.

That's the point I am trying to make - I am trying to separate the issues for konijn - so he is not trying to resolve his transcoding woes by playing around with picture style or shutter speed.

All your points are valid, but part of a separate conversation.

I (a girl, btw) know that aperture etc won't affect how the file itself is read. I was probably using the wrong words to describe what I meant, I was refering to the video settings (1920 x 1280, 1280 x 720 etc), hence why I put a picture of them to save me typing them out. I was trying to ask about the relative pro/cons of those options in terms of handling the files produced by each.