I have an 8gb Fuze with an 8gig Patriot Class 4 SDHC card. I connected with USB, dumped 8 gig worth of music on the Patriot using Explorer, the Fuze found it, etc.
When I connected the Fuze again via USB to add some more music I noticed that many of the music folders had moved from My Computer\Sansa Fuze 8GB\External uSD Card\MSC (stored under ArtistName/AlbumName to My Computer\Sansa Fuze 8GB\External uSD Card\MSC\New Folder and then the individual folders had a funny prefix, like My Computer\Sansa Fuze 8GB\External uSD Card\MSC\New Folder\88030000_The Myths And Legends Of Kin (the number is random). The music was still in the database and the files are accessible.
I put the files at the right place and rebuilt the database, then later they were scrambled again.
I have not loaded music in the internal memory yet, just a couple of audio books (DRM WMA and such, Overdrive). I can’t be paranoid enough but both scrambles happened after (noticed at least after) I loaded an audio book.
Any ideas? I’m running the latest firmware.