Tom
The first time my 3K shut down and rebooted I was not playing a midi file. However, I was playing a 3rd party style. There was some talk at the time that a corrupted file (either mid or sty) might be the culprit.

There has been no evidence since that any of the files I use are corrupted and cause of the problem.

However...you pose an interesting idea about moving your .mid files to another player. If you use a computer on your gigs, you certainly could play them back there...OR... convert them to MP3s for playback.

I am following your saga with interest. Good luck.

Eddie