Just because they have the same codecs doesn't mean they are going to have EXACTLY the same quality. I remember when I worked at Best Buy we plugged our best Blu-ray player and best HD-DVD player up on our best HDTV in the store, and Blu-ray looked better playing Planet Earth. Ever since that time, I've been a Blu-ray enthusiast. I'm sure someone will come up with a post that counters this, but my eyes weren't deceiving me. I'm not trying to support Michael Bay here or anything, I'm just telling you how I feel about both players.