I don't see any way for the PS3 to sell 34million. ~12 million units to go? 5 months left in the year? No price cut? 2m units a month? I don't even think it did 2m units last December.
VGChartz Hardware data for the period 27th Jul 2008 to 03rd Jan 2009:
Console PS3
Total: 5,118,757
YOY is down, so we're looking at maybe 4-4.5 in this same time period without a price cut. With a price cut, maybe 6-6.5m. :/ 34 is out of reach.