Apparently iTunes and Vista aren't the only things not playing well together. Several Korean manufacturers have issued statements that a few of their players aren't quite working with Microsoft's new operating system.
Three companies so far—Samsung, Cowon, and iRiver—have noted that a few of their players are incompatible with Vista. Each company will release new firmware to customers to update the players. If you have any of these players, it's best to run a dual boot Vista system first while your MP3 kinks are getting worked out.