g1smd - 8:18 pm on Sep 27, 2006 (gmt 0)

Let me get this right. You have pages indexed as "A". You have an internal rewrite to transform "B" to "A", and you now link to "B" within the site. However, you can still access the URLs as "A" and that is seen as duplicate content.

You should be able to add an external redirect from "A" to "B" and send a 301 response with it back to the browser so that it then knows to request the correct URL.

The stuff from "B" to "A" is an internal rewrite (not a redirect) and works entirely internally in the server.

There should not be interaction between the two. They should not cause a loop. I am sure that I have seen prior posts about this working.

Two redirects would cause a loop. You don't have two redirects, you have a redirect and a rewrite.