Motorola i870 / i875

i go into roxio and try to convert songs from a cd i made especially for this.. i try to insert the tracks i want into my f:\audio drive.. but its screwing with my head.. at first i would try to add them.. it would be about to start then the song would just say complete without doing anything.. the files wouldnt move to my memory card.. now anytime i try and even click on my f drive to get to audio and add tracks it says.. insert disc to drive f.. do i need another part? do i need to click something somewhere? please help