diff --git a/calibre-plugin/config.py b/calibre-plugin/config.py
index 0708124..3fc7c64 100644
--- a/calibre-plugin/config.py
+++ b/calibre-plugin/config.py
@@ -272,6 +272,7 @@ class ConfigWidget(QWidget):
             prefs['addtolists'] = self.readinglist_tab.addtolists.isChecked()
             prefs['addtoreadlists'] = self.readinglist_tab.addtoreadlists.isChecked()
             prefs['addtolistsonread'] = self.readinglist_tab.addtolistsonread.isChecked()
+            prefs['autounnew'] = self.readinglist_tab.autounnew.isChecked()
 
         # personal.ini
         ini = self.personalini_tab.personalini
@@ -781,6 +782,11 @@ class ReadingListTab(QWidget):
         self.addtolistsonread.setChecked(prefs['addtolistsonread'])
         self.l.addWidget(self.addtolistsonread)
             
+        self.autounnew = QCheckBox(_('Automatically run Remove "New" Chapter Marks when marking books "Read".'),self)
+        self.autounnew.setToolTip(_('Menu option to remove from "To Read" lists will also remove "(new)" chapter marks created by personal.ini <i>mark_new_chapters</i> setting.'))
+        self.autounnew.setChecked(prefs['autounnew'])
+        self.l.addWidget(self.autounnew)
+            
         self.l.insertStretch(-1)
         
 class CalibreCoverTab(QWidget):
diff --git a/calibre-plugin/fff_plugin.py b/calibre-plugin/fff_plugin.py
index feae7c2..d7241e1 100644
--- a/calibre-plugin/fff_plugin.py
+++ b/calibre-plugin/fff_plugin.py
@@ -337,9 +337,9 @@ class FanFicFarePlugin(InterfaceAction):
                                                                       triggered=partial(self.update_lists,add=False))
 
             self.menu.addSeparator()
-            self.get_list_action = self.create_menu_item_ex(self.menu, _('UnNew Selected books'),
-                                                            unique_name='Get URLs from Selected Books',
-                                                            image='rotate-right.png',
+            self.get_list_action = self.create_menu_item_ex(self.menu, _('Remove "New" Chapter Marks from Selected books'),
+                                                            unique_name='Remove "(new)" chapter marks created by personal.ini <i>mark_new_chapters</i> setting.',
+                                                            image='edit-undo.png',
                                                             triggered=self.unnew_books)
 
             self.menu.addSeparator()
@@ -422,7 +422,8 @@ class FanFicFarePlugin(InterfaceAction):
                 return
 
             self.update_reading_lists(self.gui.library_view.get_selected_ids(),add)
-            self.unnew_books()
+            if not add and prefs['autounnew']:
+                self.unnew_books()
 
     def get_urls_from_imap_menu(self):
 
diff --git a/calibre-plugin/prefs.py b/calibre-plugin/prefs.py
index 69496c8..0dd8afd 100644
--- a/calibre-plugin/prefs.py
+++ b/calibre-plugin/prefs.py
@@ -85,6 +85,7 @@ default_prefs['read_lists'] = ''
 default_prefs['addtolists'] = False
 default_prefs['addtoreadlists'] = False
 default_prefs['addtolistsonread'] = False
+default_prefs['autounnew'] = False
 
 default_prefs['updatecalcover'] = None
 default_prefs['gencalcover'] = SAVE_YES
diff --git a/fanficfare/cli.py b/fanficfare/cli.py
index 32ae102..f9ab6d3 100644
--- a/fanficfare/cli.py
+++ b/fanficfare/cli.py
@@ -41,12 +41,14 @@ try:
     # running under calibre
     from calibre_plugins.fanfictiondownloader_plugin.fanficfare import adapters, writers, exceptions
     from calibre_plugins.fanfictiondownloader_plugin.fanficfare.configurable import Configuration
-    from calibre_plugins.fanfictiondownloader_plugin.fanficfare.epubutils import get_dcsource_chaptercount, get_update_data
+    from calibre_plugins.fanfictiondownloader_plugin.fanficfare.epubutils import (
+        get_dcsource_chaptercount, get_update_data, reset_orig_chapters_epub)
     from calibre_plugins.fanfictiondownloader_plugin.fanficfare.geturls import get_urls_from_page
 except ImportError:
     from fanficfare import adapters, writers, exceptions
     from fanficfare.configurable import Configuration
-    from fanficfare.epubutils import get_dcsource_chaptercount, get_update_data
+    from fanficfare.epubutils import (
+        get_dcsource_chaptercount, get_update_data, reset_orig_chapters_epub)
     from fanficfare.geturls import get_urls_from_page
 
 
@@ -87,6 +89,9 @@ def main(argv=None, parser=None, passed_defaultsini=None, passed_personalini=Non
     parser.add_option('-u', '--update-epub',
                       action='store_true', dest='update',
                       help='Update an existing epub with new chapters, give epub filename instead of storyurl.', )
+    parser.add_option('--unnew',
+                      action='store_true', dest='unnew',
+                      help='Remove (new) chapter marks left by mark_new_chapters setting.', )
     parser.add_option('--update-cover',
                       action='store_true', dest='updatecover',
                       help='Update cover in an existing epub, otherwise existing cover (if any) is used on update.  Only valid with --update-epub.', )
@@ -129,6 +134,9 @@ def main(argv=None, parser=None, passed_defaultsini=None, passed_personalini=Non
     if options.update and options.format != 'epub':
         parser.error('-u/--update-epub only works with epub')
 
+    if options.unnew and options.format != 'epub':
+        parser.error('--unnew-epub only works with epub')
+
     # for passing in a file list
     if options.infile:
         urls=[]
@@ -168,6 +176,12 @@ def do_download(arg,
     # Attempt to update an existing epub.
     chaptercount = None
     output_filename = None
+
+    if options.unnew:
+        # remove mark_new_chapters marks
+        reset_orig_chapters_epub(arg,arg)
+        return
+    
     if options.update:
         try:
             url, chaptercount = get_dcsource_chaptercount(arg)
diff --git a/fanficfare/epubutils.py b/fanficfare/epubutils.py
index 8f92ca2..deaa908 100644
--- a/fanficfare/epubutils.py
+++ b/fanficfare/epubutils.py
@@ -1,11 +1,10 @@
-#!/usr/bin/env python
-# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
 # -*- coding: utf-8 -*-
-from __future__ import (unicode_literals, division, absolute_import,
-                        print_function)
+
+# from __future__ import (unicode_literals, division, absolute_import,
+#                         print_function)
 
 __license__   = 'GPL v3'
-__copyright__ = '2014, Jim Miller'
+__copyright__ = '2015, Jim Miller'
 __docformat__ = 'restructuredtext en'
 
 import logging
@@ -15,6 +14,7 @@ import re, os, traceback
 from collections import defaultdict
 from zipfile import ZipFile, ZIP_STORED, ZIP_DEFLATED
 from xml.dom.minidom import parseString
+from StringIO import StringIO
 
 import bs4 as bs
 
@@ -177,7 +177,7 @@ def get_update_data(inputio,
                     
     #for k in images.keys():
         #print("\tlongdesc:%s\n\tData len:%s\n"%(k,len(images[k])))
-    print("datamaps:%s"%datamaps)
+    # print("datamaps:%s"%datamaps)
     return (source,filecount,soups,images,oldcover,calibrebookmark,logfile,urlsoups,datamaps)
 
 def get_path_part(n):
@@ -223,20 +223,23 @@ def get_story_url_from_html(inputio,_is_good_url=None):
                     return ahref
     return None
 
-def reset_orig_chapters_epub(inputio,outputio):
+def reset_orig_chapters_epub(inputio,outfile):
     inputepub = ZipFile(inputio, 'r') # works equally well with a path or a blob
 
+    ## build zip in memory in case updating in place(CLI).
+    zipio = StringIO()
+    
     ## Write mimetype file, must be first and uncompressed.
     ## Older versions of python(2.4/5) don't allow you to specify
     ## compression by individual file.
     ## Overwrite if existing output file.
-    outputepub = ZipFile(outputio, 'w', compression=ZIP_STORED)
+    outputepub = ZipFile(zipio, 'w', compression=ZIP_STORED)
     outputepub.debug = 3
     outputepub.writestr("mimetype", "application/epub+zip")
     outputepub.close()
 
     ## Re-open file for content.
-    outputepub = ZipFile(outputio, "a", compression=ZIP_DEFLATED)
+    outputepub = ZipFile(zipio, "a", compression=ZIP_DEFLATED)
     outputepub.debug = 3
 
     changed = False
@@ -246,8 +249,8 @@ def reset_orig_chapters_epub(inputio,outputio):
     for zf in inputepub.namelist():
         if zf not in ['mimetype','toc.ncx'] :
             data = inputepub.read(zf)
-            if isinstance(data,unicode):
-                print("\n\n\ndata is unicode\n\n\n")
+            # if isinstance(data,unicode):
+            #     logger.debug("\n\n\ndata is unicode\n\n\n")
             if re.match(r'.*/file\d+\.xhtml',zf):
                 data = data.decode('utf-8')
                 soup = bs.BeautifulSoup(data,"html5lib")
@@ -265,7 +268,7 @@ def reset_orig_chapters_epub(inputio,outputio):
                 if chaptertitle and chapterorigtitle and chapterorigtitle != chaptertitle:
                     origdata = data
                     origtocncx = tocncx
-                    print("\n%s\n%s\n"%(chapterorigtitle,chaptertitle))
+                    # print("\n%s\n%s\n"%(chapterorigtitle,chaptertitle))
                     # changed = True
                     # data = data.replace(u'<meta name="chaptertitle" content="'+chaptertitle+u'"></meta>',
                     #                     u'<meta name="chaptertitle" content="">'+chapterorigtitle+u'</meta>')
@@ -277,6 +280,22 @@ def reset_orig_chapters_epub(inputio,outputio):
             else:
                 outputepub.writestr(zf,data)
 
-    outputepub.writestr('toc.ncx',tocncx.encode('utf-8'))
+    # only write if changed.
+    if changed:
+        outputepub.writestr('toc.ncx',tocncx.encode('utf-8'))
+    
+        # declares all the files created by Windows.  otherwise, when
+        # it runs in appengine, windows unzips the files as 000 perms.
+        for zf in outputepub.filelist:
+            zf.create_system = 0
+        outputepub.close()
+        if isinstance(outfile,basestring):
+            with open(outfile,"wb") as outputio:
+                outputio.write(zipio.getvalue())
+        else:
+            outfile.write(zipio.getvalue())
+
+    inputepub.close()
+    zipio.close()
             
     return changed