Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Amazing depiction of our planet!!!

To get the negative out of the way first, I was a little disappointed with some of the video footage used. I believe some of this was older stock footage in SD up converted into HD. There is no other explanation for the noise in some of the pictures, other than poor encoding/filming practice.That said, most of the footage in this series is simply spectacular. I give the film 5 stars not only for the HD video content, but for the narration and most importantly, the content of the documentary. I have never seen such a well filmed and edited piece of work. You must own this even if you have to buy the SD version, but, since Blu-Ray and HD-DVD players are really coming down in price, and if you have a HD display, you MUST BUY THIS SERIES.Hands down, the showcase for high definition DVD and educational content today! Both the beauty and brutality of nature will take your breath away.