An unknown error occurred (1439)

iPod Classic 4th Gen. Comes up with the same thing "The iPod could not be restored. An unknown error occurred (1439). Tried changing USB ports. I have three different ones and tried every single one of them and it wont restore still. Any help anyone?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0