Apparently I am not the only one to experience this problem. I ordered this machine for a party, to be held in two days, and opened the machine to find the cd player stalling and clicking when a cd was inserted (both cd-g's and regular cds did this). I bought it for the USB port, so I could access many songs without dealing with cds, but mp3-g files won't read from the flashdrive I bought for it, so in other words you can only play regular mp3s which don't allow lyrics to be displayed on the screen. I am exchanging it for another one, in the hopes that it was just a bad apple, though based on the other review, I am a little concerned that this is just a bad model.
I am severely disappointed with this one, particularly since I won't get the new one in time for my party. Hopefully I will get a working machine in the exchange.