Ok, I workedaround the thing using the single quotation marks! here's my foo_textinfo.cfg:
$if(%artist2%,%artist2%,%artist%) - $if(%title2%,%title2%,%title%)'
'
$padcut($shortest($if(%artist2%,%artist2%,%artist%),$cut($if(%artist2%,%artist2%,%artist%),16)..),18)'
'
$padcut($shortest($if(%title2%,%title2%,%title%),$cut($if(%title2%,%title2%,%title%),16)..),18)'
'
$padcut($if(%album%,$shortest($if(%album2%,%album2%,%album%),$cut($if(%album2%,%album2%,%album%),16)..),<N/A>),18)'
'
$padcut($if(%tracknumber%,%tracknumber%,<N/A>),9)'
'
$padcut($if(%date%,%date%,<N/A>),8)'
'
$padcut(%_length%,9)'
'
$padcut(%__bitrate%kbps,8)'
'
$padcut($div(%__samplerate%,1000).$substr(%__samplerate%,3,3)kHz,8)'
'
$padcut($ifgreater(%__channels%,1,stereo,mono),9)'
'
$padcut($cut(%__replaygain_track_gain%,6)dB,9)'
'
$padcut($upper($ext(%_filename_ext%)),8)'
'
This outputs a file like this:
Nirvana - You Know You're Right
Nirvana
You Know You're ..
Nirvana
01
2002
3:38
192kbps
44.1kHz
stereo
-8.700dB
MP3
The first line's for Samurize, others for my LCD. I've got an %artist2%, %title2% and/or %album2% tag in every song that has ä, ö, å in it's name, it's artist's name or in the album's name. So if the artist's name was ÄÖÅ, it'd be in the normal %artist% tag and in the %artist2% would be "AOA". This is because my LCD can't show international letters or other special characters. I've also padded those fields so it all fits perfectly on the LCD
Oh, and I HAD $if2's there, but it seems that they don't work in version 0.57 any more...