Thanks for your kind words about PhotoRescue. Just a quick warning which may be useful to others here (I don't ever use boards to promote PR): since September, more than half our tech support cases have been about 32GB cards. They seem to be failing at a much higher rate than other cards. This wouldn't be the first time the high-end capacity range suffers from growing pains (firmware issues, compatibility issues...). In most cases, we _can't_ solve the issue.
My standard recommendation is, at any given time, to use a couple of cards that are one/two generations behind the top range rather than a single larger card.
Thanks a million for the recommendation about 32GB cards. We wanted to purchase new cards and your warning came at the right time. We'll stick with 16GB.