computer help needed!!

[fishface]

hope someone might be able to help me here.

i've got a 40 gig i use as my primary hd and an 80 gig as a secondary which has only mp3's on it. problem is, the 80 is horribly fragmented and no matter what i do i can't clean it up . i've tried the window's defrager and diskeeper defragger with similar results. (no luck) anyone have any input as to how i can fix this? any ideas greatly appreciated...

darryl