Clearing ID3V1 tag fields

There is a thread in the German section on the abilities of various players to deal with different character encoding:
/t/2786/1

In general it says that you should tag your files with UTF-16 unless you player cannot cope. Then try ISO.

As for the normalization info: if this message is produced by mp3diags: you may just as well ignore it. Not that it does not mean anything but you can configure mp3diags which deviations should be displayed. If normalization is nothing to worry about then set this message to be ignored. (i have done so as I do not want normalization either).