I added an SD card to increase the capacity of my Sansa Fuze, and have been using it for months with my car stereo. It works fine when connected to my stereo via USB - all of the music on both internal memory and the new SD card play perfectly.
However I recently went on a trip and tried listening to my music directly through the headphones, and nothing on the new memory card is available from the list of music in the music menu. It simply does not exist anywhere, in any folder, and thus couldn’t be accessed.
Any idea why this would happen and what may resolve the issue?