Backup Hard Drive won't work

[micbob4]

Does anyone know how to properly copy KJ songs from one External HD to another. I did the other night (at least I thought I did) and when I went into hoster and "Build the database" tell it what drive to get songs from example Instead of F/ I put selected E/ that the new HD is on. The Build Database said it was successful but when I went to find songs and play it came up saying hoster must close error do you want to send message. I was able to pull song but when I went to play I received error. PLEASE someone anyone help!! Thanks,micbob