Originally posted by cardinal43 I always download to my computer via a card reader, and always format in camera, but only after ensuring downloads were OK.
Do you reformat after every download? That's totally NOT necessary. I have used a couple dozen cards of various formats and brands over the last decade+. I have needed to reformat cards less than a half-dozen times, usually due to some user error (I f*cked up). I use a common directory structure with scripts on all my cards, so that automatically moving files to the desired target folders is easy; reformatting would destroy that.
If I was feeling paranoid, I might add a CHKDSK/F line to the scripts, to verify that the card is still good, but I haven't needed to yet. If I was feeling picky, I might run the ERASER utility on the cards, to overwrite old data and clean-up the directories; but I haven't needed to yet. And I certainly don't reformat.
ObTopic: SanDisck and Transcend are good.