The pdf document created by the cd collection demo does not use the language translations correctly for the column titles in the table - it uses the hard-coded German words instead.
To fix this, edit the htdocs/xampp/cds.php file moving the line -
include("langsettings.php");
up to the beginning of the script.
Replace -
$data[$i]=array('interpret'=>$row['interpret'],'titel'=>$row['titel'],'jahr'=>$row['jahr']);
with -
$data[$i]=array($TEXT['cds-attrib1']=>$row['interpret'],$TEXT['cds-attrib2']=>$row['titel'],$TEXT['cds-attrib3']=>$row['jahr']);
Cheers