Magnus - Thanks for the information update! Obviously, the author(s) of the program focused on hard disk technology as their target environment, rather than considering the expanded number of other types of storage devices - an understandable situation. My temporary workaround is to use v.1 of the program - it does not do the size check for available space on the target SD card that versions .3 and above do. If you use a partition manager to de-allocate some space on the SD card (I use the difference between what Win32 Disk Imager reports as the image size and what Windows reports as the capacity of the device, plus a little extra), and then capture the image, the resulting image captured still reports the same size as I reported previously (too large for an identical SD card), but v.1 of the program happily writes the image to that SD card until it runs out of space. Since that "lost" part of the image has no meaning, what is not written doesn't matter. So far, that seems to be working for me when capturing and image from an SD card and writing that image back to an identically-sized SD card as a backup. Obviously not the perfect solution, but it works in that particular set of circumstances. There's a very active community to create an Android CyanogenMod external boot card for the Nook Color; Win32 Disk Imager is one of the recommended tools used in the process of creating the card, and there are a lot of problems reported when trying to make a backup SD card image that can be written to an identically-sized SD card once the image building process is complete. You can write the Win32 Disk Imager image to a larger-sized card, of course, but that workaround is more expensive, and if you create an image for a 32GB SD card (the maximum size card that the Nook Color will accommodate), you're out of luck backing it up unless you use the workaround I described above. Again, thanks for your attention to this issue and your efforts! I'll post the information (crediting you, of course) and the workaround to the various forums that support the Nook 2 Android CyanogenMod process. Regards, Dennis ----- Original Message ----- From: "Magnus Karlsson"