We must recognize the sound produced by this micro system SAMSUNG does not leave indifferent. Compared to my acienne micro system SONY CMT-HX30, listening to music has become a pleasure! The sound is powerful and the bass is mastered thanks to the many presets available. Yes ... because there is a but, and it is significant: it is impossible to control, by file name, playing tracks stored on a USB key. Playback resets on the first track once the unit is turned off. Over the USB memory files, the longer it takes time (and patience!) To search. A remote control button to skip files from 10 to 10, but what a waste of time! It's a shame. Without this major flaw, this micro system SAMSUNG would have had it all.