A user of OrangeCD already created a export template who creates a xml file.

I think it's ok when I post it here, because the website isn't reachable.

Here's the dax file:

/*
xml.dax
Copyright (c) Bas Terhorst, 2003
*/
SETTINGS["Settings"] {
THUMBSIZE["Thumbnail size (16)"] : int = 16;
COVERSIZE["Cover size (170)"] : int = 170;
GROUPBY["Grouping field"] : field = artistsort;
}

::start/web
<?xml version="1.0" encoding="ISO-8859-1" ?>
<collection>
<!--[Group($GROUPBY)]-->
<!--[Album(all)]-->
<album>
<album_artist><!--[Artist]-->Artist<!--[/Artist]--></album_artist>
<album_title><!--[Title]-->Title<!--[/Title]--></album_title>
<album_cover><![CDATA[<!--[Cover($COVERSIZE)/]-->]]></album_cover>
<album_thumbnail><![CDATA[<!--[Cover($THUMBSIZE)/]-->]]></album_thumbnail>
<album_uniqueid><!--[ShelfId/]--></album_uniqueid>
<album_label><!--[Label/]--></album_label>
<album_category><!--[Category/]--></album_category>
<album_format><!--[Format/]--></album_format>
<album_genre><!--[Genre/]--></album_genre>
<album_releasedate><!--[ReleaseDate/]--></album_releasedate>
<album_notes><![CDATA[<!--[cddbext/]-->]]></album_notes>
<album_time><!--[AlbumTime/]--></album_time>
<album_volumes>
<!--[Volume]-->
<volume_info>
<album_volumename><!--[VolumeName/]--></album_volumename>
<volume_trackcount><!--[TrackCount/]--></volume_trackcount>
<volume_total_time><!--[VolumeTime/]--></volume_total_time>
<trackinfo>
<!--[Track]-->
<track_details>
<track_title><!--[TrackTitle/]--></track_title>
<track_artist><!--[TrackArtist/]--></track_artist>
<track_time><!--[TrackTime/]--></track_time>
<track_num><!--[TrackNum/]--></track_num>
</track_details>
<!--[/Track]-->
</trackinfo>
</volume_info>
<!--[/Volume]-->
</album_volumes>
</album>
<!--[/Album]-->
<!--[/Group]-->
</collection>