I'm now finding that as long as I partition and format my cards on the PC before using them in the camera, it seems to be OK. I have had to use fdisk as cfdisk complains that the partition table is invalid and aborts, so it's slightly non-trivial, but I have a solution in my case. It may be that my camera is formatting the cards incorrectly in the first place - I can't remember the exact error but it was something like a partition ending beyond the physical end of the "disk" or something like that.
So I'm happy to close this bug now unless others are still having problems. With regards to Stefan's comment, his symptoms don't match mine so I don't think this is a duplicate. Andy B -- I/O errors when connecting SD (secure digital) flash cards https://launchpad.net/bugs/27852 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
