Reasonable on 15 August 2008
Clearly NPD is more official than this site (and a lot more costly)... however I thought that while NPD is USA this site includes Canada, etc. as well so it should be higher.
At the end of the day they are all estimates based on data... NPD should (unless something is very wrong) just have more data sources than VGChartz. Not all retailers release their sales figures and Sony, etc. only really know what they've shipped for sure.
Mind you, and adjustment would be fun... I can imagine the noise it would cause in the forums already...
Try to be reasonable... its easier than you think...
