it amazes me how much confusion a change of reporting of units causes. I wonder if sony intended this to happen. the numbers of units produced (the old way of reporting numbers) was always higher then shipped. this will effect any historical shipping number from sony during the real 2007 and before, and sonys fiscal 2007 and prior. the margin of difference will be magnified by how long before 2007 the unit was produced and how much it was produced. so in the case of the ps2 there were large numbers of units that were not shipped to retailers as units for sale. they probably ended up being used for a variety of other things from replacements to demo units, with multiple versions of the same basic hardware demos would be swapped frequently.
the psp will also be affected by this but to a lesser degree. replacements/demos/gift-units/review-units and what ever else that did not go to retail used to be counted
the PS3 will be the unit with the fewest number of consoles falling on this being only 2 quarters under those guidelines, and one of the quarters having production issues.
all of this makes me think sony should and investors should demand a retro history using the new model of reporting
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