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Torillian said:
RJ_Sizzle said:

NPD is using more empirical data, which VGChartz just plain doesn't have access to. The difference is damn near science vs. magic. Did we ever get an official formula on how Chartz gets their numbers, or is it still pretty much an old woman using tea leaves? You don't ever see NPD having to go back and adjust figures based on VGChartz numbers, no? One of these sources is more reliable than the other.

My description would indeed mean that one of those sources would be reliable than the other. That doesn't make the two processes different processes. They are the same process with different resources. Have you ever been told NPD's official formula?

It's right on their site. What's the one for VGChartz? Jimmies don't get rustled over VGC figures being out in the wild. NPD on the other hand... I wonder why that is.