My cards are 16 gig, I carry 3. The GoPRo Hero II munches a battery in about the time it fills a 16 G card, so it all works out good.

I pull the battery and put it on a charger and change cards at the same time. At the end of a long day, I'll have gone thru all 3 cards (most of the way thru the third one) and three batteries. I transfer files to the computer in the evenign and erase the cards.

I GUESS you could do it with one big card, but my way, I know what run each card is, etc.


I can only assume you will have higher-def modes than I have that will fill a card faster. Let me know how the '3 works, my 2 is ready to be retired.