So you may actually need some of the larger size memory cards depending on your volume. Perhaps not 2TB, but maybe 1TB or 500GB. I still think it's wise to use the smallest drives to accommodate your output as it protects your work from csrd failure, but it probably wouldn't be practical to use an 8GB card for a day of shooting. I'd say 32GB is probably the minimum you should use, just so you can confortably shoot without needing to swap cards every 20min.