working ,mediatomb config running on raspbian, you can update the import.js file with a different import structure

config.xml

<?xml version="1.0" encoding="UTF-8"?>
<config version="2" xmlns="http://mediatomb.cc/config/2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://mediatomb.cc/config/2 http://mediatomb.cc/config/2.xsd">

  <server>
    <ui enabled="yes" show-tooltips="yes">
      <accounts enabled="no" session-timeout="30">
        <account user="mediatomb" password="mediatomb"/>
      </accounts>
    </ui>
    <name>MediaTomb RPi</name>
    <udn>uuid:d088039e-b1e2-4ab4-84da-9f6a0660eb03</udn>
    <home>/var/lib/mediatomb</home>
    <webroot>/usr/share/mediatomb/web</webroot>
    <storage caching="yes">
      <sqlite3 enabled="yes">
        <database-file>mediatomb.db</database-file>
      </sqlite3>
      <mysql enabled="no">
        <host>localhost</host>
        <username>mediatomb</username>
        <database>mediatomb</database>
      </mysql>
    </storage>
    <pc-directory upnp-hide="yes"/>
    <protocolInfo extend="yes"/>

    <extended-runtime-options>
      <ffmpegthumbnailer enabled="yes">
        <thumbnail-size>256</thumbnail-size>
        <seek-percentage>5</seek-percentage>
        <filmstrip-overlay>yes</filmstrip-overlay>
        <workaround-bugs>no</workaround-bugs>
      </ffmpegthumbnailer>

      <mark-played-items enabled="yes" suppress-cds-updates="yes">
        <string mode="prepend">*</string>
		<mark>
		  <content>video</content>
		</mark>
      </mark-played-items>
    </extended-runtime-options>
  </server>

  <import hidden-files="no">
    <scripting script-charset="UTF-8">
      <common-script>/usr/share/mediatomb/js/common.js</common-script>
      <playlist-script>/usr/share/mediatomb/js/playlists.js</playlist-script>
      <virtual-layout type="js">
        <import-script>/usr/share/mediatomb/js/import.js</import-script>
        <dvd-script>/usr/share/mediatomb/js/import-dvd.js</dvd-script>
      </virtual-layout>
    </scripting>

    <filesystem-charset>UTF-8</filesystem-charset>
    <metadata-charset>UTF-8</metadata-charset>
    <playlist-charset>UTF-8</playlist-charset>

    <mappings>
      <extension-mimetype ignore-unknown="no">
        <map from="mp3" to="audio/mpeg"/>
        <map from="ogg" to="application/ogg"/>
        <map from="asf" to="video/x-ms-asf"/>
        <map from="asx" to="video/x-ms-asf"/>
        <map from="wma" to="audio/x-ms-wma"/>
        <map from="wax" to="audio/x-ms-wax"/>
        <map from="wmv" to="video/x-ms-wmv"/>
        <map from="wvx" to="video/x-ms-wvx"/>
        <map from="wm" to="video/x-ms-wm"/>
        <map from="wmx" to="video/x-ms-wmx"/>
        <map from="m3u" to="audio/x-mpegurl"/>
        <map from="pls" to="audio/x-scpls"/>
        <map from="flv" to="video/x-flv"/>
        <map from="mkv" to="video/x-matroska"/>
        <map from="mka" to="audio/x-matroska"/>
      </extension-mimetype>
      <mimetype-upnpclass>
        <map from="audio/*" to="object.item.audioItem.musicTrack"/>
        <map from="video/*" to="object.item.videoItem"/>
        <map from="image/*" to="object.item.imageItem"/>
        <map from="application/ogg" to="object.item.audioItem.musicTrack"/>
      </mimetype-upnpclass>
      <mimetype-contenttype>
        <treat mimetype="audio/mpeg" as="mp3"/>
        <treat mimetype="application/ogg" as="ogg"/>
        <treat mimetype="audio/x-flac" as="flac"/>
        <treat mimetype="image/jpeg" as="jpg"/>
        <treat mimetype="audio/x-mpegurl" as="playlist"/>
        <treat mimetype="audio/x-scpls" as="playlist"/>
        <treat mimetype="audio/x-wav" as="pcm"/>
        <treat mimetype="audio/L16" as="pcm"/>
        <treat mimetype="video/x-msvideo" as="avi"/>
        <treat mimetype="video/mp4" as="mp4"/>
        <treat mimetype="audio/mp4" as="mp4"/>
        <treat mimetype="application/x-iso9660" as="dvd"/>
        <treat mimetype="application/x-iso9660-image" as="dvd"/>
        <treat mimetype="video/x-matroska" as="mkv"/>
        <treat mimetype="audio/x-matroska" as="mka"/>
      </mimetype-contenttype>
    </mappings>
    <online-content><!-- Make sure to setup a transcoding profile for flv -->
      <YouTube enabled="no" refresh="28800" update-at-start="no" purge-after="604800" racy-content="exclude" format="flv" hd="no">
        <favorites user="mediatomb"/>
        <standardfeed feed="most_viewed" time-range="today"/>
        <playlists user="mediatomb"/>
        <uploads user="mediatomb"/>
        <standardfeed feed="recently_featured" time-range="today"/>
      </YouTube>
      <Weborama enabled="no" refresh="28800" update-at-start="no">
        <playlist name="Active" type="playlist" mood="active"/>
        <playlist name="Metal" type="playlist">
          <filter>
            <genres>metal</genres>
          </filter>
        </playlist>
      </Weborama>
      <AppleTrailers enabled="no" refresh="43200" update-at-start="no" resolution="640"/>
    </online-content>
  </import>
  <transcoding enabled="no">
    <mimetype-profile-mappings>
      <transcode mimetype="video/x-flv" using="vlcmpeg"/>
      <transcode mimetype="application/ogg" using="vlcmpeg"/>
      <transcode mimetype="application/ogg" using="oggflac2raw"/>
      <transcode mimetype="audio/x-flac" using="oggflac2raw"/>
    </mimetype-profile-mappings>
    <profiles>
      <profile name="oggflac2raw" enabled="no" type="external">
        <mimetype>audio/L16</mimetype>
        <accept-url>no</accept-url>
        <first-resource>yes</first-resource>
        <accept-ogg-theora>no</accept-ogg-theora>
        <agent command="ogg123" arguments="-d raw -o byteorder:big -f %out %in"/>
        <buffer size="1048576" chunk-size="131072" fill-size="262144"/>
      </profile>
      <profile name="vlcmpeg" enabled="no" type="external">
        <mimetype>video/mpeg</mimetype>
        <accept-url>yes</accept-url>
        <first-resource>yes</first-resource>
        <accept-ogg-theora>yes</accept-ogg-theora>
        <agent command="vlc" arguments="-I dummy %in --sout #transcode{venc=ffmpeg,vcodec=mp2v,vb=4096,fps=25,aenc=ffmpeg,acodec=mpga,ab=192,samplerate=44100,channels=2}:standard{access=file,mux=ps,dst=%out} vlc:quit"/>
        <buffer size="14400000" chunk-size="512000" fill-size="120000"/>
      </profile>
    </profiles>
  </transcoding>
</config>

import.js.patch

--- import.js.orig  2013-01-01 16:25:07.975186922 +0100
+++ import.js	2013-01-01 16:35:07.949460089 +0100
@@ -148,18 +148,15 @@
 
 function addVideo(obj)
 {
-    var chain = new Array('Video', 'All Video');
+    var dir = obj.location.split('/');
+    var skip=3;
+    var chain = new Array();
+ 
+    if(skip <= dir.length-2)
+	for(i=skip;i<=(dir.length-2);i++)
+		chain.push(dir[i]);
+ 
     addCdsObject(obj, createContainerChain(chain));
-
-    var dir = getRootPath(object_root_path, obj.location);
-
-    if (dir.length > 0)
-    {
-        chain = new Array('Video', 'Directories');
-        chain = chain.concat(dir);
-
-        addCdsObject(obj, createContainerChain(chain));
-    }
 }
 
 function addWeborama(obj)

make_random_episodes.sh

#!/usr/bin/env bash
set -e

MORE_RANDOM_FILE="/home/pi/more random         .mkv"

test -f "$MORE_RANDOM_FILE" || touch "$MORE_RANDOM_FILE"

if [[ $1 == "monitor" ]]; then
    $0

    while (true) do
        inotifywait -e CLOSE "$MORE_RANDOM_FILE"
        $0
    done

else
    ( find /home/pi/Serien/Die\ Simpsons/ -type f | shuf | tail -n 5 ;
        echo "$MORE_RANDOM_FILE" ) | tee ~/Serien/Simpsons.m3u
fi

playlist.js.patch

--- playlists.js.orig  2013-08-05 20:43:38.598472676 +0200
+++ playlists.js	2013-08-05 20:56:51.045849836 +0200
@@ -77,13 +77,13 @@
 if (dot_index > 1)
         playlist_title = playlist_title.substring(0, dot_index);
 
-var playlistChain = createContainerChain(new Array('Playlists', 'All Playlists', playlist_title));
+var playlistChain = createContainerChain(new Array('Random', playlist_title));
 
-var playlistDirChain;
+var playlistDirChain = undefined;
 
 var last_path = getLastPath(playlist.location);
 if (last_path)
-    playlistDirChain = createContainerChain(new Array('Playlists', 'Directories', last_path, playlist_title));
+   // playlistDirChain = createContainerChain(new Array('Playlists', 'Directories', last_path, playlist_title));
 
 if (type == '')
 {