http://www.amazon.co.jp/exec/obidos/...F0CRG/r571-22/
The runtime for the Blu-ray is expected to be around 280 minutes, or 4 hours and 40 minutes total.
AT09's runtime for all three DVDs (concert + encore + MCs/extras):
DISC 01: Approx. 87 mins
DISC 02: Approx. 74 mins
DISC 03: Approx. 60 mins
Total: 221 mins - 3 hours and 41 minutes
I'm guessing the additional hour is a combination of more MCs and a longer concert.