crwdns2934241:0crwdne2934241:0 rab777hp

crwdns2934249:0crwdne2934249:0:

Sounds like a bad hard drive or logic board, I'm inclined to think logic board, you can get replacement boards [http://www.ifixit.com/iPod-Parts/iPod-Nano-2nd-Gen#0-Logic+Boards|here].

crwdns2915684:0crwdne2915684:0:

open