Konami MGS4 has sold 4.75M copies (To Retailers)

[forevercloud3000]

I think the mix up is most likely with online sales on sites like Amazon. From what I have been hearing, their numbers are always screwed.

I do think MGS4 isn't the only game included in the data. Yet it most likely is a sizable chunk, no doubt.

MGS4 shipped around 4.4
MGS4 sold around 4.2