|very strange - fortunately, you can look at the internal SanDisk from your command line DOS prompt. since the booted external CF card configures as C:, then the first partition of the internal SanDisk is D:, and the second (recovery) partition is E:. So, just use the DOS 'DIR' command to look at the internal logical drives:|
C:\> DIR /A D:
C:\> DIR /A E:
if that shows you valid directory listings, try your dolly operation, again. if it doesn't show you valid DOS directory listings, it's possible that you've overwritten/trashed your internal SanDisk.