I'd love to hear from someone who's done this before - successfully:

in 2 weeks, I will shoot a classical concert (orchestra), on a great looking concert stage, with two GH2s. One's going to be a static wide shot and the second one will shoot close up and different angles. The concert will run about 90 minutes total. The location will be bright enough, but I'd say I most likely will have to use an ISO of 640 or 800 in order to be able to shoot with an f 5.6.

I do own two fast 64 GB 95mb/s SandDisc cards. - I'll be shooting this in 24p.

I certainly want it to look as good as possible (with as fine a noise grain as possible - considering my ISO), but I also need about 40-50 minutes of continuous recording time per segment - and the full 90 minutes should fit on each of the 64 GB cards.

I'd really appreciate any real world feedback for this kind of task. VBR or CBR? What kind of bit rate should I be going for? Would any of the new Driftwood patches be suited for this?

Thank you so much in advance.

--- Markus ---