I expected 400k, so I wasn't too far off

How many sales days in GT5 Japanese first week ?

W/o bundles... so clearly is lower

What about the margin of error on the media create numbers? They are not absolute.

So you want to take into account margin of error on VGchartz,and margin of error on MC numbers?

Come on man, it was a lil bit overtrack... nothing wrong with that, the source is not perfect, and it was a preview afterall, is not the end of the world... of sales tracking.

Well FF13 was more important in JP for PS3, much more important than GT. GT5 will do a lot better overseas though, but i dont know if it can reach the success of previous entries. not to mention GT5 will likely become the 2nd best selling PS3 game in JP below FF13 and above MGS4 imo. so i think we can expect a bit more in the coming weeks, as FF13 was frontloaded, think GT5 will still do well in the long run in JP.

Well yes you have to take into consideration both margin of errors. That's how we work in science.

Well... this ain't no science =)

Unfortunately  :(  But we try, it's usually pretty good.