I’m using a Mac, and Finder shows the various folders on the SandDisk. Music files are locatable from the “Music” folder, but Podcasts cannot be found on the SanDisk (In fact there’s not reference to them.)
Also, the SD card (“Untitled” in finder) show the tree: Music -> Audio -> Podcasts but not contebt revealed in Sandisk.
Basicly a) the card isn’t being detected (AFAIK) and b) “Music” is the only option (not “Podcasts” etc.) showing on the SandDisk menu.
You can rename the SD card using FINDER . Right click on the SD card -> Get Info. Then use “Name & Extension:” to edit the SD card name.
FINDER should show these folders in the root directory of the SD card
Audible
Audiobooks
Music
Playlists
Podcasts
There is normally not an “Audio” folder under “Music”.
You could consider ejecting the SD card from the player and then use the SD card adapter that comes with the micro SD card to directly read your micro SD card on your Mac. Then delete all files and folders on the micro SD card. Then (while the player is off and not connected) insert the micro SD card into the player. Then turn the player on and it will automatically create all the required folders on the micro SD card.
Also, you could try using 16gb or 32gb micro SD cards. There is a separate discussion on this forum concerning problems using 64gb micro SD cards.