Guy's and gals

all my other TrueHD and DTS Master Audio Blu-Ray disc's play these the 2 fore mentioned audio's and they are automaticaly detected by my Amp.

But on Dark Knight there's no option to select the appropiate Audio in this case it should be DD TrueHD but there's only DD 5.1, so it dosn't do what it says on the tin.

suggestions please

regards: canthackit