Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Q: These two short tapes consist of a brief description of 50 years of white-red relations, treaties and conflicts. Because of its brevity, there is little detail presented. The text is interesting and appears to be factually correct. The presentation is relatively unbiased, and is quite interesting. It would make a good audio tape. The extra loud background music and simulated battlefield noise sometimes drowns out the text. The visual portion consists of old photographs, presumably authentic in detail and clips from old grade B movies which are quite far from authentic. These are rerun from 6 to 10 times throughout the presentation and, of course, have no bearing on the text. Except for the extreme brevity and the overwhelming background noise, one can ignore the visual effects and derive a worthwhile understanding of many aspects of the period of the Indian Wars.

A: Negative
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Q: It brought home an old classic - I can watch these guys over and over again.

A: Positive
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Q: The book makes a great read, same as DHC's other books of the "Lost Cities" series. Very entertaining, thought provoking, and well written. One thing though: I don't get why the author keeps calling himself "a rogue archeologist": someone has to explain to him what archeologists do. DHC is no archeologist, whatever he might think; he's a traveler, a gossip gatherer, and a free spirit, but all this has little to do with archeology. I enjoyed his open-mindedness, and the relativism with which he judges most of the theories and hypotheses considered. Going through his whole opus, I can't help noticing that this writer is a really great guy, and that his travel companions and friends must have been lucky to have met him, but archeologist? Please, give me a break. And use some proofreader, for the next edition.

A:
Positive
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