Exact US SoundScan figures for, i believe, up to last week (much thx to Grindstone for the figures) :
Vertigo Chicago DVD - 265,654 (not too far off with 300k!
)
Slane Castle DVD - 243,163
Elevation Live DVD - 243,236
So total estimated sales/certifications for Chicago from following 9 countries :
265,654 sold in USA (56k sold in 1st week)
Approx 80k sold in UK (in first 7 wks)
Certified Diamond for 100k in France
80k(+) sold in Brazil
Certified 3xPlat for 75k in Spain
Certified 4xPlat for 60k in Australia
Certified Platinum for 40k in Denmark
Certified 3xPlat for 15k in New Zealand
Certified Gold for 3k in Switzerland
Total = approx
718,654 sold/certified in these 9 countries
So must now be at 800k-1m(+) sold/certified worldwide (according to Paul M. they sold 2m DVD's in 2005).