Plays channels without any problems. It also plays other recordings if you insert them, although when you press stop, it takes you back to the beginning of the recording. The problem is that you have to consult an astrologer to find out which USB stick it is compatible with for recording. It has a USB 2.0 specification. I tried using a Verbatim USB 3.0, but it finds it slow and doesn't write. I bought the Samsung Fit Plus USB 3.1 with a 4.8-star rating on Scroutz. It doesn't write, and it finds it slow. Instead of buying half of the USB sticks on the market until I find the right one, I preferred to buy another receiver.