Unfortunately I had to initial enthusiasm notice that both of the remote control, as well as the "Source" button on the device with inserted USB stick no change for this to work. It is the CD and the receiver display, but not the MP3s. This only works if I just re insets the USB flash drive. Positive of reference on my first complaint: Quote "There is probably here a defect in the software before." Please send us the unit. I did that immediately. Then after a few days the Mail: "It was found no error, we will send the unit back in the next 5 days, if we do not hear from you." I have it responded immediately and the error described again. Today the unit came online again. The error is still the same.