after several trial.. i found out that when i use the original apple firmware.. i can easily and safely remove hardware... now on rockbox mode.. when i plug my player on the usb port.. a usb plug icon will show on the screen of my player for a few second and slowly the screen turns to grey!.. but i am able to access my player on the explorer as D:, what happened to icon that flashes "do not disconnect" and "ok to remove"?, though,now i can safely remove it on the computer but i have to wait for a few minutes!, if i reload/run/install rockbox firmware again.. will i loose all my files?... thanks in advance