Fuze won't mount in Ubuntu

SanDisk MP3 players Sansa® Fuze™
3

  1. I had set the player to always use MSC.

  2. I can’t do that, whenever the player is turned on while disconnected from a computer, it gets stuck refreshing media.

I tried plugging it into my Mac, but mostly same problem: A lot of system files are there, I can’t get to my music folder, etc. Also, random filesystem glitches occcur, such as exactly 23 items reported in every folder, which can’t be true…

Windows (XP) did basically the same thing.