Hannes,

> I set the style of the Transcript to  DefaultMultiStyle

  This should be done automatically.

> 16r3040 to: 16r30FF do: [ :ch | Transcript show: ch  asCharacter
> printString].
> 
> But now Japanese characters showed up.

  Did they?  If you want to check out hiraganas, try

(401 to: 483) collect: [:i | JISX0208 characterKuten: i]

and for katakanas

(501 to: 583) collect: [:i | JISX0208 characterKuten: i]

  There is a character numbering scheme called 'Kuten' code
in JIS X 0208 standard and JISX0208>>characterKuten: gives you the
specified character.

  Hope this helps,

-- Yoshiki