The issue is that they need to be 32-bit, and USB isn’t, and there are no firewire readers.
The most economical decision is to get a laptop, Mac or PC, with a card bus slot.
Cheaper than anything else, and the laptop is included.
I think Panasonic is missing the boat here.
Give us a 32-bit firewire card reader for $200.00 and you’ll sell a million of them.
David S.