I just put an 8GB memory card in my Sansa Fuze+. I’m able to download music files to the card, but when I connect to USB port on computer and right click the Sansa Fuze+ icon, it’s only displaying the player and indicating that the internal drive is full. How can I tell how much space I have left on my new memory card?
you can try to connect the card directly to the computer to see ift he card itself is working fine. then you can fill up the card with some music and plug it into the player to see if it detects the music files from the card.