The following has been posted on the Jethro Tull/Ian Anderson website:
STOP PRESS: AUDIO GLITICHES ON TAAB 40th Special Edition DVD
We have been alerted to the fact that there are three small audio glitches on the 5.1 streams on the DVD part of the Thick As A Brick Special Edition CD/DVD set. We are working to resolve this issue as quickly as possible. Any new stock going into stores will be amended & for fans who’ve already purchased the set we will be making available a replacement DVD disc for you. More information to follow shortly. This occurred in the very final stage of mastering prior to manufacture of the commercial run of product and was not noticed until attentive early purchasers spotted the digital errors.
With our apologies.EMI Music, Ian Anderson and Steven Wilson.