Are you aware of what you are saying? If that was true, we would have to subtract even millions from this 160.636... number. That would mean the PS2 would come down dangerously close to the DS. I doubt it undersold it as we know 155,1 million units have in fact been shipped by march 31,2012. But if what you said with these 10- 15% was true, we would even need to debate that 155,1 million number... here i would nearly defend the PS2. Of course they shipped less then 160 million but not that less... at least i don't think so. But if that was true, PS2s total could be a lot lower than 160,64 million!!

I believe that the PS2 indeed shipped approximately 160 million units. The figure of 160,636,885 is likely a fantasy number. The actual production number should be between 175 and 185 million. Because if 160,636,885 were indeed the total number of units produced, then yes, the PS2 likely would have sold fewer units than the Nintendo DS. Considering the PS2’s highly successful and exceptionally long lifespan, the number of unsold consoles must be around 10–15%!