My old Zune 30 still works like a charm, though I do wish for more capacity. My 17 yr old son's Zune 80 has a busted screen & a non-functional lock slider. The display is totally dead, not cost effective to repair, but he says the Zune 80 still 'works.' Since he got a Cowon S9 for Christmas, he has handed the old man his broken junk. Will the hdd from the Zune 80 drop in the Zune 30 and work???? I'm not ready to update my portable source right now - I'm in RSA Hornet save-up phase. A cost-free capacity upgrade would be awesome.