Why when I just want to charge my sansa clip+4gb; it copy all my files from the computer ?

I don’t believe anyone here thinks you an ■■■■■, just someone who is frustrated at a yet-to-be-understood-and-solved issue.

The fact that your flash drives are beinig recognized as audio devices though, may indeed have something to do with it. Sorry I don’t have a clue at this time, but I’m sure once you figure it out, the player will be a much more enjoyable toy to play with. :wink:

Again, turn off sync from within WMP . . . .