From what I've heard/read it may make sense to calibrate the video that way but not necessarily the audio--because video calibration DVDs may be surpassed by professionals with video calibration equipment which may not require additional tweaking to suit your taste whereas you may have to tweak the audio on multiple occasions to address changes in your HT room and to suit your own taste across time/program content in which case you're better off doing the audio setup yourself because you'll have to learn how to tweak things eventually anyway. Someone else may be able to explain better but I think it goes something like that . . .
