EDIT

  I addition you must edit compat-1.0.js: replace lines 24 - 26 by:

          /*

           * a.kohlbecker: unload is still a valid event type and must not be replaced! 

           *               compat-1.0.js breaks plugins wich are using this event e.g. thickbox

           *  => thus I removed load from var e.

           */ 

          var e = ("blur,focus, resize,scroll,unload,click,dblclick," +

            "mousedown,mouseup,mousemove,mouseover,mouseout,change,reset,select," + 

            "submit,keydown,keypress,keyup,error").split(",");

  /*

   * bug: compat-1.0.js && thickbox.js line 237 .trigger("unload")

   * -> event is not triggered because of problems with compat-1.0.js'

   * 

   */

        $muris = cdm_mediauri_conversion($uri->value);

      // --- handle media preview rules

      // --- handle web application rules

      $webapp = '';

      if(isset($muris['webapp'])){

        if($muris['webapp']['embed_html']){

          // embed in same page

          $webapp = $muris['webapp']['embed_html'];  

        } else {

          $webapp = l(t('web application'), $muris['webapp']['uri']);            

        }

      }

      $meta_row .= '<td><span class="label">'.check_plain($specimen->specimenLabel).'</span><div class="webapp">'.$webapp.'</div></td>';

    $rules = cdm_mediauri_rules();

    foreach($rules as $rule){

      if($rule['embed_html'] && $rule['path']){

        $items[] = array(

          'path' => $rule['path'],

          'access' => true, //TODO restrict access

          'callback' => 'cdm_mediauri_view_embed',

          'type' => MENU_CALLBACK,

        );

      }

    }

    // determine if the menu has changed

    if($rules[$form_values['rid']]['embed'] != $form_values['rule']['embed'] || $rules[$form_values['rid']]['path'] != $form_values['rule']['path']) {    

      menu_rebuild();

      drupal_set_message('Menu Rebuild');

    }

      $rule['path'] = '';

      $rule['title'] = '';

   $form['rule']['url_encode'] =  array(

    '#type' => 'checkbox',

    '#title'         => t('Url Encode'),

    '#default_value' => $rule['url_encode'],

    '#description'   => t('Whether the converted url is to be url encoded')

   );

  $form['rule']['path'] =  array(

    '#type'          => 'textfield',

    '#title'         => t('Drupal Path'),

    '#default_value' => $rule['path'],

    '#description'   => t('Drupal Path under which the media is to be embedded into a page')

  );

  $form['rule']['title'] =  array(

    '#type'          => 'textfield',

    '#title'         => t('Page Title'),

    '#default_value' => $rule['title'],

    '#description'   => t('Page Title')

  );

  $rule2['prefix'] = '<div style="float: left; width: 10em;">

  <p>© BGBM: <br>

  Access is granted under the following conditions:<br>

  The images may not passed on to any third party without our written

  consent and due mention of the copyright restrictions, and may not be

  used for commercial or non-scientific purposes. Reproduction in

  scientific publications is authorized on the condition that the source

  and the copyright are fully acknowledged:<br>

  © Botanischer Garten und Botanisches Museum Berlin-Dahlem, FU Berlin.</li>

</p>

<p><a href="http://www.bgbm.org/bgbm/verantwo_e.htm"

    class="leftnavi" title="Contact">Contact</a> | <a href="http://www.bgbm.org/bgbm/imprint.htm"

    class="leftnavi" title="Impressum">Imprint</a> | <a href="http://www.bgbm.org/disclaim_e.htm" class="leftnavi"

    title="Disclaimer">Disclaimer</a>

</p>

</div><div><embed width="490" height="700" align="middle" type="application/x-shockwave-flash" 

  $rule2['affix'] = '&FPXWidth=2801&FPXHeight=4478&Effects=qlt%3D85&InitialView=&Measure_ImageWidth=270.0&Measure_Suffix=%20mm"/></div>';

  $rule2['path'] = 'bgbm.org/herbarium';

  return array($rule1, $rule2);

 *      ['uri']             // the uri possibly prefixed with path

 *      ['embed_html']      // the uri embedded into some string

        if(isset($rule['embed_html']) && $rule['embed_html']){

          if($rule['path']){

            // embed later on other page

            $muris[$rule['type']]['uri'] = $rule['path'].'/'.$uri_converted;

          } else {

            // direct embed

            $muris[$rule['type']]['embed_html'] =  $rule['prefix'].$uri_converted.$rule['affix'];

          }

        }

function cdm_mediauri_view_embed($uri){

  $path = '';

  for($i = 0; ($arg = arg($i)); $i++){

    if($arg == $uri){

      break;

    } else {

      $path .= ($path ? '/': '').$arg;

    }

  }

  $rule = false;

  foreach(cdm_mediauri_rules() as $r){

    if($r['embed_html'] && $r['path'] == $path){

      $rule = $r;

      break;

    }

  }

  if($rule){

    drupal_set_title($rule['title']);

    return $rule['prefix'].$uri.$rule['affix'];

  }

  return 'ERROR:'.$path.$uri;

}