I have some video clips in iMovie at NTSC (720x480) and I sent them out as custom 360x240, instead of the iPod setting of 320x240. After looking at both my custom size and the iPod setting, I'm curious why iMovie has the iPod setting to 320x240 instead of 320x214, in order to preserve the aspect ratio (half of 720 is 360, but iPod will only do 320, so 240 needs to be scaled down...) Does the iPod setting smash the sides of the clip? I don't want to delete the video only to have to come back and rebuild it so I don't run into distortion problems.