Gavin, I sincerely and politely tried to help the OP (DROO) with their issue, but you have subsequently responded to this when you should have started your own thread to deal with your specific issues. Furthermore, your responses are full of angst that is not helping anyone.
To quote you: "Handling cards almost guarantees that the card will fault. In all my time using digital cameras, over a decade, I've only ever had one fault, and that was on my first EOS camera, a 300D, when I tried to change the card while it was still writing."
I have used cards in the way I have suggested for almost 20 years without any issue. The fact that you actually admit the one issue you had was your own action in pulling a card out while it was writing, is your issue as a user and there is no validity to extrapolate that to an essential inherent issue with cards themselves.
I worked on the design for Windows interface, and the intent was always that you should use the Eject feature (either in File Manager, or from the tool in the Windows tray) to ensure that the card does not have open file connections to the computer. Pulling the card prematurely creates a risk that the card will corrupt its FAT system and render it unusable. That is not an issue with Windows, or with cards per se, it is user error.
I am not decrying the need for Canon to resolve the driver issue, but I offered the OP a work-around based on the information they initially gave,
The initial post did not include the information that the OP wanted to rename files en masse - that is your contribution.
To deal with your objections:
Depending upon the speed of your USB drive connection, I would normally expect that copying from the SD card would be faster than a USB drive cable - it should certainly not be slower.
As to being able to batch rename files: you can do that using DPP from the card once it is connected via the reader and recognized as a drive on your PC, or after the files are copied from the card to the hard disc. If you do the latter, it will process them at the speed of the hard drive. So, it's just a matter of working slightly differently from the way you did before. The point is you can achieve your ends if you are prepared to be flexible.
cheers, TREVOR
The mark of good photographer is less what they hold in their hand, it's more what they hold in their head;
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris
