Thanks for your reply.
I have significant problems usind Sonica with my 150.000+ mp3files, and I like the clearly arranged look of the built-in player, so I'm not using Sonica. To be honest: I didn't manage to get it running only one time. (on the complete library!
After reading the discussion, I'm convinced this is a Roku-developers issue then, right?!
It's interesting that the HD swallows up the next two characters after the special character, and sometimes adds extra words from other lines at the end of the titles.
So for example:
line1 "Der Anfang",
line2 "Die TÃ¼rme" and
line3 "Die falsche Versuchung"
ends up in displaying
"Die Te", or sometimes
"Die Tesche Versuchung" in line2.
Scrolling up and down over this line2 sometimes changes the display to
" Die Tefang"
If this is a multi-byte encoding problem, it sits very deep in the code, I guess.