Originally, elements of this product were included content in the .9x beta release of DS and continued through version 2.
The bundle sold in the store actually was created shortly after DAZ purchased Bryce from Corel. It was the first product DAZ offered in their DS native format. If you purchased the bundle by a certain date, DAZ threw in the Poser version of the content at no extra charge.
Due to changes in DS by version 2, DAZ changed the base content and ceased to offer the DS native format. I haven’t reset the downloads for this in several years so I don’t know if DAZ updated to their newer version of DS native content.