5/5 Chronos by Ron Fricke in Blu Ray
  by Michael G. Bennett
This is a great video presentation, and I have been waiting since 1885 or so to buy it in the best format of today. Both the music and the video presentation are stunningly beautiful.

5/5 Visually stunning Blu ray time lapse cinematography!
  by Richard P. Muraski (New Haven, CT)
Ron Fricke is noted for great visual IMAX documentaries (Baraka is one) and Chronos is another. This film is a series of time lapse events of famous and not so famous places, but does create a new look of our world. There is no speaking, only new age music that enhances the visuals. The Blu ray transfer and audio quality are superb. This would make a great home theater demo disc to impress your friends. If it short, about 40 minutes, but any more would be sensory overload. Highly recommended!

4/5 Chronos defies time
  by Marc Champeau (Québec city, Canada)
I did not own any nature nor special effects HD-DVD to play on my TOSHIBA XA2 HD-DVD player. Now that void is partially filled with CHRONOS. It is a real bargain for its low price. I did not award it 5 stars because I would have enjoyed having more water/ocean scenes and because it lasts only 45 minutes.Planet Earth: The Complete Series [HD DVD]

4/5 Handling Problems
  by C. Start (Aurora, IL. United States)
The film Chornos is very good, The problem is with the handling of the disc in shipping the disc came off the hub in the case and moving around in shipping the disc was damaged.

2/5 Very Disappointing
  by H. S. Sinclair (West Hartford, CT United States)
I bought this BluRay on the recommendations here on Amazon. I have owned Koyaanisqatsi on a number for formats for many years and, although it is becoming dated, believe it is the epitome of its gendre. I was looking forward to a similar movie experience with this film.
How disappointing. I thought I was watching a student film of someone who had seen Koyaanisqatsi many years ago and had forgotten that, believing these were fresh insights. Many of the images are quite beautiful, but many seem very similar if not the same stock used in Koyaan. Where was this movie going? What was it trying to portray? It seemed to end before it got started. How many times in the music am I just hearing the sound of capacitors slowly discharging?
Caveat emptor on this film; I strongly warn against buying it sight unseen.