Best selling HD console exclusives of the generation

[dsage01]

ishiki said:

VGC never claimed to be more than like 10-15% accurate using his methods to extrapolate the data. There was a post ioi post about it a while ago. 

Meaning when you sell 10 million copies you have a margin of error of possibly 1.5 million copies. 

I wonder why that rule only applies to PS3 games. 360 games for the most part are tracked spot on whereas PS3 games such as GT5 and God of War 3 are around 1-1.5 million less than what they actually sold.