I have a 32GB MicroSDHC card (presumed fake[ebay]) that I've been using in my NookColor. I used Win32DiskImager to mount AutoNooter (63.8MB) for rooting. After I clean it off, the card would only register as 8MB . I've tried formatting it in the Nook, with Win7, and a dozen different applications, including Paragon Partition, SDFormatter, and SD Fix. Tried putting it in my camera but it can't read it anymore.
It flaked out on me before, but was able to fix with Paragon.
Now everytime I plug the Nook into the computer, it reads the card saying to format it. I do and it makes it a 8mb drive. Then when I take it out, the next time I plug in, the drive cannot be read.