Format your player and re-load everything in MSC mode. This will end your confusion and the inconvenience of switching USB modes back & forth. You only need MTP mode if using ‘protected’ content like Rhapsody or ‘borrowed’ audio books from your library. Otherwise, you’re better off not using it at all.
If it’s hanging on “Refreshing your media” it means there’s an ID3 tag (or several) that it cannot read. Download MP3Tag (a free program) and set the Settings in Tools to these settings. Open up your Music folder (on the player) in the program and re-save all to the correct tag format (ID3v2.3 ISO-8859-1).
