SEOmoz Says 530 - Google Webmaster Tools Says 16

[lbohen]

A SEOmoz crawl report on 1/20/2013 says we have 530 duplicate page titles most of which are pages like this these two:

http://www.audiobooksonline.com/reviews/review.php/details/38

http://www.audiobooksonline.com/reviews/review.php/details/104

These pages are the result of allowing visitors to post their opinions and ratings about specific audio books.

Google Webmaster Tools reports we have 16 duplicate page titles none of which are a review page.

Why is SEOmoz reporting duplicate page titles?

Should SEOmoz be reporting these pages as having duplicate page titles?

Why isn't Google Webmaster Tools reporting the review pages as having duplicate titles?

[EcommerceSite]

We has the same problem, after a lot of research we figured it it was scripts. If we had a script on a page it counted the page twice most of the time. The Seomoz crawler isn't as advanced as the Googlebot so it can't do quite as much.