OK done some tests about promotions; it seems to work now, promotion will occur every five minutes, so just wait few minutes, and press SHIFT+F5 to clear cache - it could help...
So, who has laserdiscs of Tom Sawyer (1973), Darling (Criterion), or The Aftermath that they can rip the audio commentaries from so we can finally finish preserving all of the not-on-DVD commentaries?