My Sansa Fuze did I weird thing. This morning when I turned it on it started scrolling through all the all very quickly. If I went to the main menu it would stop on a song and I could toggle pause and play and the icon would change but no sound would come out. Going back into the now playing screen would go right back to scrolling. Eventually it stopped (Always on a James Taylor song…) but when it did it would say 0:00 played of 0:00.
I tried all the reset suggestions on here with holding this button and that button etc but nothing worked. I plugged it into my computer and though the properties still showed I was using about 7g when I opened the internal memory it showed no files or folders except for the devicon file.
As a last resort I right clicked the internal memory and formatted. Then I copied something back to the device and now it works again!
Just thought someone might find that useful.