I am more curious about the speed needed. I like being on the "cutting edge" of technology and almost bought a 64gb 90mbs card for $200 at B&H. However, I had just run out of money buying the 10mm for an extra $149, and the SanDisk 30mbs has been more than fast enough in my D5100 and D7000.
Of course the write speed to my computer would be enhanced, but would the V1 actually benefit from that fast of a card?
I use a 16gb sandisk extreme pro. U1 speed. 636 NEF+jpgs. I don't pay to much attention to the amount of HD recording and misplaced my manual at the moment but the display says @1080p/30fps 20min/6.2k @1080i/60fps 20min/2.5k @ 720p/60fps 29min/8.3k I have no idea what the k numbers are without my manual.