Note sure if its a bug or not, but I sometimes note that the display (with the "synchronising" animation) freezes - and, coincidentally, the buttons stop working so I can't turn the display on/off anymore. However, the synchronize operation does continue. Sometimes the animation and buttons will kick in again, sometimes they won't. If they don't by the time the synch is completed, the player does not reboot and emplode naturally alerts me to that. Otherwise, I can reboot manually and all is well. So nothing dire, but just wanted to mention it.