I am wondering if they are talking about the paid version cus I run it on my site. www.psbspeakers.com and it comes up with all kinds of dup content.
<loc>http://www.psbspeakers.com/products/image/Image-B6-Bookshelf</loc>
<loc>http://www.psbspeakers.com/products/bookshelf-speakers/Image-B6-Bookshelf</loc>
with this code siteing on both pages:
<link rel="canonical" href="http://www.psbspeakers.com/products/image/Image-B6-Bookshelf"/>