Looking at the data, it looks like the player is rebooting or trying to reboot while doing something else?

But the player was only stuttering the audio for short periods of time - not enough for a crash and reboot.

Earlier it HAD rebooted itself (after I tried to insert a track into a 22,000 track running order). Is it possible that the reboot messages were caught in a buffer? I did not launch hyperterminal until after that reboot had taken place.