I could not be more disappointed with this "collection". Then again, it shouldn't surprise me - previous DVD releases I have bought from Discovery are also trimmed from the original episodes. There are 11 episodes here, with a running time of just under 8 hours. China, Brazil, Italy and Austrailia were previously released on HD-DVD and Blu-Ray, and were 100 minutes a piece. You do not get those here - rather, these episodes are all trimmed down to 43 minutes, throwing out more than half the length of the original 4. I recommend purchasing them in addition to this "collection".
I am thrilled to see some of the other episodes - the only other two I had seen were Japan and Mexico, and these were previously unavailable.
Having 8 episodes on two discs does have its problem. I currently have it paused on a single frame to write this review of a sunrise over Africa. There are compression artifacts and color banding and macroblocking. Its sad - the previous Discovery Atlas releases were demo discs - this release leaves a lot to be desired.
The audio is not as dynamic on the Italy and China releases as the previous releases. Not sure what is up, but sounds like DVD audio as opposed to Blu-Ray. Quite disappointing. Also, unless I am mistaken, both of those episodes also have different narrators. I have not checked out the second disc yet.
I am quite disappointed with this set. The Discovery Atlas series is one of the greatest series ever produced, and to see them mutilated in this form is sad. I think Discovery should give everyone who purchased this copies of the full episodes free-of-charge. I would not be so upset, as it was only $30, except that this was advertised as the "Complete Collection".This is sad, sad, sad, and certainly false advertising.