Hello everyone, something has me worried about my iMac. It's an aluminum 2.93ghz model with 4 gigs of ram. I also own an alumninum2.4ghz macbook with 4 gigs of ram. Lately I been making movies with iMovie and the exporting time on both of them are huge. It seems me macbook can export a 2 min imovie clip in HD in about 10 minutes and my iMac which takes the same exact file in about an hour? Maybe its my imovie setting but here is a screen shot of my macbook imovie setting. http://img694.imageshack.us/img694/9084/screenshot20091105at202.png and here is a screenshot of my imac imovie setting. http://img691.imageshack.us/img691/5692/imac.png Another thing I'm confused on why is there setting screen different on my imac and macbook. Both are the same versions of imovie and I'm running snow leopard.