sansa fuze v2 on ubuntu 10.10

I can see the player but i can’t copy files please help me!

Is the player set to MSC mode?

I formated it to fat32 from gparted and now i can write songs.

I think the filesystem was corrupted.

Maybe the filesystem read-only?

what is the output of

mount

and of

dmesg | tail

 after  you plug it in?