Good information... Is the HC an indication of what the card can
be used for?

Most of my SD cards are SanDisk brand....How about listing those that DO work in the 7K and the KN2600?

When some of my SD's have been stored for awhile, with programs on them, the programs are useless when I put them in the machine again.... They are stored either in a plastic case or a leather
case with several pockets to hold the cards....

Since I "tweak" my programs nearly everytime I use them, I find that I rarely go to another SD....Probably have enough to last till either my two 7K's are gone.....or I am!