Digital Cameras and SD cards

@Gary
I know about formatting after downloading, but stll it's inconvenient when travelling for several days or weeks. Ideally, I would like to have a copy of all files on the card and one on the mac, in case something goes wrong with either. Now I just leave the images on the card until I get home. (I seem to remember as well that I got copying errors while trying to copy large amounts of data off the cards, so there still might be some compatibility issues with the card reader in the macbook air (2011 model).

@Richard
It,s exactly what happened to the defective card. Couldn't read it in Windows and Mac machines, couldn't even format it and none of the different image rescue applications could retrieve a single file. I don't remember if Disk Utility could do something with it, I'll pay closer attention next time (useful tip, thanks). I'm not sure though that these cards are formatted FAT, since they're too large for that - as I understood they're formatted as EXFAT or some variation of it, but I may be wrong.

(For the record, my cards are 64GB, not 128GB as I stated erroneously.)
 
Could be a driver related issue. I don't use anything bigger then 16gb. I would rather carry 4 or more 16gb then to have lost a 64gb or have one fail on me. Right now I have a mix of 8 and 16 gb Sandisk extreme pro 95mbs that I use in my recent cameras. They all read fine off of the iMac internal sd card reader..

Gary
 
Coincidentally, yesterday was the first time ever that I got a "card error' message (happened to be with the X100). For a day before that, the write speed got very very slow. Then the error message.

Back home I found this thread that helped to explain the issues:

http://www.rangefinderforum.com/forums/showthread.php?t=104112#14

The problem is now solved (for me).
 
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