On http://ngs.musicbrainz.org/release/f1c8ae2f-ee9f-4682-b6d9-ff5178fa8521/relationships neither of the links to Amazon include the referrer stuff.
Marking as decision required as I'd like to know if:
a. I still need to do this
b. You still want it done in the same way (/misc/redirects which then redirects to Amazon).
Even though we are not earning money from this right now, lets do the right thing and fix this properly. I'm hoping that Amazon and the state of california will eventually figure this shit out.
Yes, we need to do this.
This is in review at http://codereview.musicbrainz.org/r/1688/ and available for testing at http://test.musicbrainz.org