"As soon as I plugged it in, two new USB storage device icons
showed up on my desktop. I right clicked them and clicked mount. I
opened Konqueror and there in /media were the drives. I copied
files to the watch then closed Konqueror. I right clicked one of
the watch icons and clicked Safely Remove and then unplugged the
watch. The new files were there and played fine.
"Total time to get the watch working in Linux, 1/4 hour."