I dont know about the rest of you, but not only can I tell the difference between a burned copy off an original, but I can also hear the difference off of a store bought CD and a Master CD. For anyone that doesnt know what a master is its a disc thats made right off the 4 track from the studio and is gold covered and actually see through. Very hard to find but far better sounding in my opinion. I only have two, both U2 discs. War and Unforgetable Fire, and I also own actual mass produced store copies and burnt copys of all of them. Its a noticable difference from one level to the next. With that said, if you are unsure of a new album than Download, but if you like it and are gonna actually listen to it more than once you should be buying it.