12-28-2009 03:36 PM
Had the same problem with my SanDisk 8GB SDHC card (about $19 at Costco). It was discovered after power-off and I re-seated the card. The microSD slot could be a bit more bullet-proof, but it did work...
Did you try re-seating the card???
12-28-2009 05:03 PM
It may take several MINUTES for all your audio files to be seen by the Nook. I have many files on my Nook and it takes quite some time for them all to appear.
02-25-2010 01:01 AM
My nook was not playing audio files from my micro card when I first put it in my nook a few weeks ago. I called support. I told him they were itunes that had no DRM and that they were mp3s. I told him I had stripped some of the DRM from a few tunes. He said that was the problem.
Well, long story short, that wasn't the problem. The problem was that my tunes were ripped at high bitrates. I converted all of them to 128 bps and they work properly, albeit slow to load.