Heres a link to a little prog to format usb drives [please note that i have only tried on a pen drive ]
http://homepage.ntlworld.com/hiren.thanki/downloa...les/usb_format.exe
Also, after reading a bit, it says that many generic mp3 players have a little option "set the usb to auto-detect" it may be somewhere in the options....
If it is set, it should work/look like any other regular device, and you should be able to delete/rename blah blah...
Oh, now with the model... what program she has used in the past to add songs?
They dont seem to have firmware updates... for anything.... and user opinions really suck....