My USB key is recognized as a Digital Audio Player
Problem
Some USB devices on Ubuntu are not detected as "classic", USB keys but as music players such iPod. This error causes the launch of a music player (unless you uncheck the "Play music files when their connection" in System / Preferences / peripherals and removable media), and assigns to the key an icon that is not a USB key but a player.
Solution
Follow and apply the different steps explained in this article :
http://ubuntuforums.org/showpost.php?p=2909412&postcount=12