If anyone is interested, I found a program that gives you simultaneous Chinese/Japanese/Korean font and input support. It's not cheap, but there is a free trial:
Effy-CJK 4.0 (Chinese/Japanese/Korean/English) Fonts included 4.0
(link has some info about the program and a download link)
I'm trying it right now, now all my Chinese/Japanese/Korean mp3s titles etc. are displaying correctly in the HTC music player (touchflo3d interface) and in windows media player and the file explorer.