have an MP3 player by Nextar like the one in this picture, and I like it because it plays MP3s, it doesn't insist on crippling DRM, it is fairly durable, and didn't cost too much. One place that took some getting used to, however, is the operation of the controls. Here, for instance, is the sequence of button presses you need to do if you are listening to a track you are tired of, want to erase it, and start listening to the next track:
where S is the button on the side, L and R are the buttons to advance and go back, and C is the button in the center of the ring. (You don't need to touch the up or down buttons or the A-B button.) Typically I need to execute this maneuver one-handed, while driving, not looking at the screen, and I'm getting pretty good at it. Still, it seems like they could have done away with a prompt or four to simplify what should be a rather common operation.