Hello all, been unable to find anything on here re my problem, so here goes.. Am using new iPod touch and Spotify premium through the front USB input on my Marantz cd6004. Sounds great but certain tracks (of which I've found many) will not play. Marantz display shows "USB com error" and have to reconnect. Always same tracks while other tracks never have a problem. Will be cancelling my premium if persists, disappointing as I bought the touch especially for this. Anyone else had this and/or advice? Thanks.