I have been reading the last few pages and can't understand why some fellow owners are having so much trouble with their tagging? I have never encountered such issues, besides the second update where I couldn't play via folders.
I tend to keep my files very simple-
Since the latest update, my DX100 has been a joy to use, only a few minor complaints, 1. there is the slight pop when the screen is turned back on after sleeping and that only happens once or twice and then it is silent after............no idea why? Battery life is better 8-9hours. One thing is, if the player is left on standby, make sure you have pressed stop on the player. 2. this is a slight annoyance as if you don't the DX100 continues eating up the battery as if it were still playing music.