The issue hear is the vinyl IS adding distortions to the sound and I believe it is affecting the DR number, maybe not 4db but maybe it is. The distortion that is added by the vinyl is typically distortion that is enjoyable by most vinyl lovers. There is nothing wrong with that its just the reality. The bottom line is and the biggest reason I posted this thread was because this proves that the DR database cannot be reliably used to determine whether the vinyl and CD released at the same time are the same master or not. I can't tell you how many times I read on this forum that someone is gonna hold out for the vinyl because its more dynamic than the CD assuming they used a different master. Then they show the numbers from the DR database to prove their point. If you like the sound of vinyl more than CD thats fine but the vinyl is adding things to the original master so if your a purist and like getting as close as you can to the original master, vinyl isn't always gonna do that for you.