Those MC/Famitsu figures have some gaps, that is the maiin reason for the discrepency. Also, the biztap link is to production shipments. Retail shipments are not the same as production shipments. Compare PS2/PSP/PS3 production shipments to retail shipments when both figures are available in the March 2007 year and the figures are millions of units apart. This is why when Sony gives retail shipments for PS2 it is never just the figures on the production shipment page + retail shipment page - that would be counting some units twice. PS2 production shipments + retail shipments are 141m, but Sony had retail shipments of PS2 at 138.9m through June 2009
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu
