I have a Nook HD+ and I bought a micro SD card to expand the memory in it. Use Win7 as my OS. Formatted the card in my computer as FAT32 and mounted it without trouble. After loading a few hundred books I noticed that the format of it while in the Nook is “Generic Hierarchial”. Erased it, unmounted it, reformatted it as exFAT32 this time - was told that with Win7 the exFAT format is the correct option. Remounted, reloaded and again its showing as a Generic Hierarchial card. Am I doing something wrong? Tried to load a few newer books 2 weeks ago and NOTHING is showing up as loaded on the card now…all those books are gone. Appreciate any help I can get as B&N says that of course its not a Nook problem but a memory card problem.