The matrix you state is exactely the same as the matrix number of the truly very first West German pressing of BiB, the full aluminium-to-center-hub CD that reads "MADE IN WEST GERMANY BY POLYGRAM" on the bottom area of the label side. I did not do an EAC rip of that disc yet, but I would suggest that obviously the same glass master has been used. In the early-to-mid 1980ies, most CDs for many different record labels were pressed at the huge CD plant in Hanover/West Germany, because there were no other plants in the world (except for Japan). Later, the Warner/Atlantic and related labels built their own CD plant in Alsdorf (now in use for WME/ "Warner manufacturing Europe"). Obviously some of the glass masters were simply handed over from Hannover to Alsdorf, and the very first BiB CDs pressed at the then new Alsdorf plant were made from the master that originally had been made/used at the Hanover plant. So, does this master provide the Barry Diament mastering? It seems to be confirmed here that the Japan 20P2 pressing does have the Diament mastering. I just checked the DR database for the 20P2 (follow this ink http://dr.loudness-war.info/album/view/18233) - and the result is, that all tracks of the 20P2 have the same peak level, except for track no.7 (You shook me...) which has a higher peak, just as with the EAC Levels you posted. See also here http://forums.stevehoffman.tv/threa...al-back-in-black-cd-please-view.280643/page-2 (post no 27 and 30) more examples of pressings with exactely this mastering.