I've been messing with this for hours, its getting frustrating. I've made a slideshow with pictures only in iMovie. If I upload it with any of the standard settings, large, HD or whichever, it comes out with the images looses massive quality as well as changing they way they look completely (they are all orangish). I solved this problem by converting the video with the selection - Apple Intermediate Codec, its coverted is a .mov file at 470mb. No dramatic image loss, color is in tact, it looks great! Only problem, when I upload it to youtube, it says "cannot convert file". I'm assuming you can't upload .mov files or something. Anyone have a solution for keeping my images in as high of quality as possible but being able to upload in youtube? I have to get this up asap, so any help is much appreciated. Thanks in advance!