diff --git a/src/org/slub/rosetta/plugins/repositoryTask/DnxMoveFileOriginalPathDublettesClean.java b/src/org/slub/rosetta/plugins/repositoryTask/DnxMoveFileOriginalPathDublettesClean.java
index d44c07c36b1f4fbc58235d8ceb770d30b5ffa704..e4fa1f977b708b324fe9ca911a093d09e89acb6c 100644
--- a/src/org/slub/rosetta/plugins/repositoryTask/DnxMoveFileOriginalPathDublettesClean.java
+++ b/src/org/slub/rosetta/plugins/repositoryTask/DnxMoveFileOriginalPathDublettesClean.java
@@ -9,10 +9,7 @@ import com.exlibris.digitool.repository.api.RepositoryTaskPlugin;
 
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -44,18 +41,20 @@ public class DnxMoveFileOriginalPathDublettesClean implements RepositoryTaskPlug
                 try {
                     List<String> filePids = ieEditor.getFilesForRep(repPid);
                     // for each rep pid mark all fileoriginalpaths to detect copies
-                    Set<String> filePaths = new HashSet<>();
+                    Map<String, String> filePathsWithModificationDate = new HashMap<>();
                     for (String filePid : filePids) {
                         try {
                             DnxDocumentHelper ieDnxH = ieEditor.getDnxHelper(filePid);
                             DnxDocumentHelper.GeneralFileCharacteristics ieGfs = ieDnxH.getGeneralFileCharacteristics();
+                            String currentUpdateDate = ieGfs.getFileModificationDate();
                             String currentFileOriginalPath = ieGfs.getFileOriginalPath();
                             // workaround to check if fileOriginalPath has no "file://" because the replacement
                             // always(!) starts with "file://"
                             if (currentFileOriginalPath.startsWith("file://") ) {
-                                filePaths.add( currentFileOriginalPath );
+                                filePathsWithModificationDate.put(currentFileOriginalPath, currentUpdateDate);
+
                             } else {
-                                filePaths.add( "file://" + currentFileOriginalPath);
+                                filePathsWithModificationDate.put("file://" + currentFileOriginalPath, currentUpdateDate);
                             }
                         } catch (DigitoolException e) {
                             IEsuccess = false;
@@ -70,7 +69,7 @@ public class DnxMoveFileOriginalPathDublettesClean implements RepositoryTaskPlug
                     for (String filePid : filePids) {
                         try {
 
-                            if (replaceFileOriginalPath(ieEditor, repPid, filePid, filePaths)) {
+                            if (replaceFileOriginalPath(ieEditor, repPid, filePid, filePathsWithModificationDate)) {
                                 countSuccess++;
                             }
                             taskResults.addResult(ieEditor.getIEPid(), null, true, "filepid=" + filePid + " processed");
@@ -136,10 +135,11 @@ public class DnxMoveFileOriginalPathDublettesClean implements RepositoryTaskPlug
 
 
 	/* replace file original path if it starts with "file://data/" or "/data/" */
-    private boolean replaceFileOriginalPath(IEEditor ieEditor, String repPid, String filePid, Set<String> filePaths) throws DigitoolException, FileOriginalPathCollisionException {
+    private boolean replaceFileOriginalPath(IEEditor ieEditor, String repPid, String filePid, Map<String, String> filePathsWithModificationDate) throws DigitoolException, FileOriginalPathCollisionException {
         DnxDocumentHelper ieDnxH = ieEditor.getDnxHelper(filePid);
         DnxDocumentHelper.GeneralFileCharacteristics ieGfs = ieDnxH.getGeneralFileCharacteristics();
         String currentFileOriginalPath = ieGfs.getFileOriginalPath();
+        String currentModificationDate = ieGfs.getFileModificationDate();
         String updatedFileOriginalPath = currentFileOriginalPath; /* default to current to avoid empty string */
         boolean updated = false;
         final String replacement = "file://";
@@ -148,7 +148,8 @@ public class DnxMoveFileOriginalPathDublettesClean implements RepositoryTaskPlug
         /* if something is updated */
         if (matcher.lookingAt()) { // update it
             updatedFileOriginalPath = matcher.replaceFirst( replacement );
-            if (filePaths.contains( updatedFileOriginalPath )) {
+            if (filePathsWithModificationDate.containsKey( updatedFileOriginalPath )) {
+                // TODO: check Date!
               throw new FileOriginalPathCollisionException("update needed for IE " + ieEditor.getIEPid() + " RepPid " + repPid + " FilePid " + filePid +
                     " (old file_original_path='" + currentFileOriginalPath + "') to new file_original_path='" +
                     updatedFileOriginalPath + "', but new file_original_path already exists!"
@@ -164,6 +165,7 @@ public class DnxMoveFileOriginalPathDublettesClean implements RepositoryTaskPlug
             log.info("No update needed for IE " + ieEditor.getIEPid() + " RepPid " + repPid + " FilePid " +
                     filePid + " (file_original_path='" + currentFileOriginalPath + "')");
         }
+        // TODO: delete old entry!
         ieGfs.setFileOriginalPath(updatedFileOriginalPath);
         ieDnxH.setGeneralFileCharacteristics(ieGfs);
         ieEditor.setDnx(ieDnxH, filePid); /* necessary to commit changes on filePID */