Well, support starts at 17:30. Let's say 2 supports for an hour that would until 19:30 which means concert until 22:30. Now, the Hyde Park tickets says gig should stop until 22:15 so either support acts (with necessary changes on stage) won't take up to 1 hour or we will have 2:45 long concert :) But, I would not expect support act gig to last that long... that would be too much I think. Let's assume 2 support acts each playing 35-45 mins, each joined once with either Brian or Roger or PR and then big (long playing) event.
My phone only records at 176*144 and so only 'costs' 10mb for twenty minutes of recording therefore 128mb should do the trick. Quality isn't too good though obviously.
In reality catalog by Queen and Paul is so huge that playing it for 2 hours may be a little :) However, it is not excluded that they might play many songs just as parts thus performing many many songs we would all like to hear. I guess in 15 minutes play they could mix/merge at least 5-8 songs. I do not expect that to be on all concerts, but for Hyde park which seems to be the greatest that could be the case.
Farncourt may not be a full set list..just a warm up for the REAL tour which starts at Brixton!! In my experience, when I saw Queen for 3 consecutive nights at Birmingham on the Works tour '84 they plyed identical sets except for the inclusion/exclusion of Sheer Heart Attack/Jailhouse Rock during the first encores before WWRY and Champions!!
I might be wrong, but changes to the set list/order of songs will more than likely occur at the accoustic set or with the encores. They will be a tight outfit well tuned after a month's rehearsals with stage mixers (Trip Khalaf) and arena mixers properly prepared for the gigs so constant changing will probably be unlikely (they've probably rehearsed more numbers than is required to fill 2.5 hours just in case they decide to drop some and include others)
History of European shows has shown little variation in the main sets except for little additions here and there before main numbers. They have of course played different sets for US & Japan to include other hits in these countries.
My point, anyone seeing more than one show will probably see the same sets give or take a few changes along the way.
Anyway, just enjoy what is going to be an awesome tour and the "promise" of a 2.5 hour set. In all the times I've seen Queen..5 times as well as the Tribute concert, they only played for 110 minutes so 2.5 hours is bloody brilliant!!. An extra 40 minutes of great music from three of rocks legends.
...and to add: Both Brian and Roger pointed out that setlists on this tour might very well very per night!
(Which is of course great news for the ones going to several shows! ;-)
(Though I do assume it will only be a couple of songs max that will be different. But any surprise would be cool)
And Brixton? Hah... sure they're gonna try out every single song they rehearsed!! Yay ;-)