I have had the same problem. SD drive worked well in every other way, only Win32 disk imager did not recognize it. Then I installed previous version 0.1 of win32 disk imager (win32diskimager-RELEASE-0.1-r15-win32.zip) and it worked again ! Quite clearly a problem of the software, not the hardware.
I have had the same problem. SD drive worked well in every other way, only Win32 disk imager did not recognize it. Then I installed previous version 0.1 of win32 disk imager (win32diskimage r-RELEASE- 0.1-r15- win32.zip) and it worked again ! Quite clearly a problem of the software, not the hardware.