diff --git a/README.md b/README.md
index 2d6efaf5..a400b3b2 100755
--- a/README.md
+++ b/README.md
@@ -89,8 +89,9 @@ Refer to the Wiki for additional installation examples: [manual installation](ht
 
 ## Requirements
 
-- Python 3.5+
+- Python 3.7+
 - [Imagemagick](https://imagemagick.org/script/download.php) for cover extraction from EPUBs (Windows users may need to install [Ghostscript](https://ghostscript.com/releases/gsdnld.html) for PDF cover extraction)
+- Windows users need to install [libmagic for 32bit python](https://gnuwin32.sourceforge.net/downlinks/file.php) or [libmagic for 64bit python](https://github.com/nscaife/file-windows/releases/tag/20170108), depending on the python version; The files need to be installed in path (e.g. script folder of your Calibre-Web venv, or in the root folder of Calibre-Web
 - Optional: [Calibre desktop program](https://calibre-ebook.com/download) for on-the-fly conversion and metadata editing (set "calibre's converter tool" path on the setup page)
 - Optional: [Kepubify tool](https://github.com/pgaskin/kepubify/releases/latest) for Kobo device support (place the binary in `/opt/kepubify` on Linux or `C:\Program Files\kepubify` on Windows)
 
diff --git a/cps.py b/cps.py
index 8af6cef1..039c2a5e 100755
--- a/cps.py
+++ b/cps.py
@@ -30,19 +30,15 @@ from cps.main import main
 
 def hide_console_windows():
     import ctypes
-    import os
 
-    hwnd = ctypes.windll.kernel32.GetConsoleWindow()
-    if hwnd != 0:
-        try:
-            import win32process
-        except ImportError:
-            print("To hide console window install 'pywin32' using 'pip install pywin32'")
-            return
-        ctypes.windll.user32.ShowWindow(hwnd, 0)
-        ctypes.windll.kernel32.CloseHandle(hwnd)
-        _, pid = win32process.GetWindowThreadProcessId(hwnd)
-        os.system('taskkill /PID ' + str(pid) + ' /f')
+    kernel32 = ctypes.WinDLL('kernel32')
+    user32 = ctypes.WinDLL('user32')
+
+    SW_HIDE = 0
+
+    hWnd = kernel32.GetConsoleWindow()
+    if hWnd:
+        user32.ShowWindow(hWnd, SW_HIDE)
 
 
 if __name__ == '__main__':
diff --git a/cps/__init__.py b/cps/__init__.py
index 57832f79..157dd14e 100755
--- a/cps/__init__.py
+++ b/cps/__init__.py
@@ -70,8 +70,8 @@ mimetypes.add_type('image/vnd.djv', '.djv')
 mimetypes.add_type('image/vnd.djv', '.djvu')
 mimetypes.add_type('application/mpeg', '.mpeg')
 mimetypes.add_type('audio/mpeg', '.mp3')
-mimetypes.add_type('application/mp4', '.m4a')
-mimetypes.add_type('application/mp4', '.m4b')
+mimetypes.add_type('audio/x-m4a', '.m4a')
+mimetypes.add_type('audio/x-m4a', '.m4b')
 mimetypes.add_type('audio/ogg', '.ogg')
 mimetypes.add_type('application/ogg', '.oga')
 mimetypes.add_type('text/css', '.css')
diff --git a/cps/file_helper.py b/cps/file_helper.py
index 095b5ee0..9d5406d3 100644
--- a/cps/file_helper.py
+++ b/cps/file_helper.py
@@ -29,8 +29,9 @@ log = logger.create()
 
 try:
     import magic
+    error = None
 except ImportError as e:
-    log.error("Cannot import python-magic, checking uploaded file metadata will not work: %s", e)
+    error = "Cannot import python-magic, checking uploaded file metadata will not work: {}".format(e)
 
 
 def get_temp_dir():
@@ -46,12 +47,15 @@ def del_temp_dir():
 
 
 def validate_mime_type(file_buffer, allowed_extensions):
+    if error:
+        log.error(error)
+        return False
     mime = magic.Magic(mime=True)
-    allowed_mimetypes =list()
+    allowed_mimetypes = list()
     for x in allowed_extensions:
         try:
             allowed_mimetypes.append(mimetypes.types_map["." + x])
-        except KeyError as e:
+        except KeyError:
             log.error("Unkown mimetype for Extension: {}".format(x))
     tmp_mime_type = mime.from_buffer(file_buffer.read())
     file_buffer.seek(0)
@@ -66,6 +70,5 @@ def validate_mime_type(file_buffer, allowed_extensions):
                     return True
         except:
             file_buffer.seek(0)
-            pass
-    
+    log.error("Mimetype '{}' not found in allowed types".format(tmp_mime_type))
     return False
diff --git a/cps/helper.py b/cps/helper.py
index 2d39895e..08fa1387 100644
--- a/cps/helper.py
+++ b/cps/helper.py
@@ -562,7 +562,7 @@ def move_files_on_change(calibre_path, new_author_dir, new_titledir, localbook,
             if not os.path.isdir(new_path):
                 os.makedirs(new_path)
             shutil.move(original_filepath, os.path.join(new_path, db_filename))
-            log.debug("Moving title: %s to %s/%s", original_filepath, new_path)
+            log.debug("Moving title: %s to %s", original_filepath, new_path)
         else:
             # Check new path is not valid path
             if not os.path.exists(new_path):
diff --git a/cps/tasks/convert.py b/cps/tasks/convert.py
index 5354dce2..e6af356f 100644
--- a/cps/tasks/convert.py
+++ b/cps/tasks/convert.py
@@ -269,10 +269,18 @@ class TaskConvert(CalibreTask):
                                '--with-library', library_path]
                 p = process_open(opf_command, quotes, my_env)
                 p.wait()
-                path_tmp_opf = os.path.join(tmp_dir, "metadata_" + str(uuid4()) + ".opf")
-                with open(path_tmp_opf, 'w') as fd:
-                    copyfileobj(p.stdout, fd)
-
+                check = p.returncode
+                calibre_traceback = p.stderr.readlines()
+                if check == 0:
+                    path_tmp_opf = os.path.join(tmp_dir, "metadata_" + str(uuid4()) + ".opf")
+                    with open(path_tmp_opf, 'w') as fd:
+                        copyfileobj(p.stdout, fd)
+                else:
+                    error_message = ""
+                    for ele in calibre_traceback:
+                        if not ele.startswith('Traceback') and not ele.startswith('  File'):
+                            error_message = N_("Calibre failed with error: %(error)s", error=ele)
+                    return check, error_message
             quotes = [1, 2, 4, 6]
             command = [config.config_converterpath, (file_path + format_old_ext),
                        (file_path + format_new_ext)]
diff --git a/optional-requirements.txt b/optional-requirements.txt
index 3f6b6e37..d63bc41c 100644
--- a/optional-requirements.txt
+++ b/optional-requirements.txt
@@ -43,6 +43,3 @@ comicapi>=2.2.0,<3.3.0
 
 # Kobo integration
 jsonschema>=3.2.0,<4.24.0
-
-# Hide console Window on Windows
-pywin32>=220,<310 ; sys_platform == 'win32'
diff --git a/test/Calibre-Web TestSummary_Linux.html b/test/Calibre-Web TestSummary_Linux.html
index bb2ba3d2..288c7443 100644
--- a/test/Calibre-Web TestSummary_Linux.html	
+++ b/test/Calibre-Web TestSummary_Linux.html	
@@ -37,20 +37,20 @@
       <div class="row">
         <div class="col-xs-6 col-md-6 col-sm-offset-3" style="margin-top:50px;">
             
-            <p class='text-justify attribute'><strong>Start Time: </strong>2024-07-17 20:06:46</p>
+            <p class='text-justify attribute'><strong>Start Time: </strong>2024-07-18 20:53:44</p>
             
         </div>
       </div>
       <div class="row">
         <div class="col-xs-6 col-md-6 col-sm-offset-3">
             
-            <p class='text-justify attribute'><strong>Stop Time: </strong>2024-07-18 03:16:31</p>
+            <p class='text-justify attribute'><strong>Stop Time: </strong>2024-07-19 03:48:09</p>
             
         </div>
       </div>
       <div class="row">
         <div class="col-xs-6 col-md-6 col-sm-offset-3">
-           <p class='text-justify attribute'><strong>Duration: </strong>5h 58 min</p>
+           <p class='text-justify attribute'><strong>Duration: </strong>5h 43 min</p>
         </div>
       </div>
       </div>
@@ -1619,13 +1619,13 @@
 
     <tr id="su" class="passClass">
         <td>TestEditAuthors</td>
-        <td class="text-center">8</td>
-        <td class="text-center">8</td>
+        <td class="text-center">9</td>
+        <td class="text-center">9</td>
         <td class="text-center">0</td>
         <td class="text-center">0</td>
         <td class="text-center">0</td>
         <td class="text-center">
-            <a onclick="showClassDetail('c14', 8)">Detail</a>
+            <a onclick="showClassDetail('c14', 9)">Detail</a>
         </td>
     </tr>
 
@@ -1687,7 +1687,7 @@
     
         <tr id='pt14.7' class='hiddenRow bg-success'>
             <td>
-                <div class='testcase'>TestEditAuthors - test_rename_author_accent_onupload</div>
+                <div class='testcase'>TestEditAuthors - test_rename_author_emphasis_mark_onupload</div>
             </td>
             <td colspan='6' align='center'>PASS</td>
         </tr>
@@ -1702,6 +1702,15 @@
         </tr>
     
     
+    
+        <tr id='pt14.9' class='hiddenRow bg-success'>
+            <td>
+                <div class='testcase'>TestEditAuthors - test_rename_tag_emphasis_mark_onupload</div>
+            </td>
+            <td colspan='6' align='center'>PASS</td>
+        </tr>
+    
+    
 
 
     <tr id="su" class="passClass">
@@ -2635,11 +2644,11 @@ IndexError: list index out of range</pre>
     
 
 
-    <tr id="su" class="failClass">
+    <tr id="su" class="passClass">
         <td>TestKoboSync</td>
         <td class="text-center">12</td>
-        <td class="text-center">11</td>
-        <td class="text-center">1</td>
+        <td class="text-center">12</td>
+        <td class="text-center">0</td>
         <td class="text-center">0</td>
         <td class="text-center">0</td>
         <td class="text-center">
@@ -2730,31 +2739,11 @@ IndexError: list index out of range</pre>
     
     
     
-        <tr id="ft29.10" class="none bg-danger">
+        <tr id='pt29.10' class='hiddenRow bg-success'>
             <td>
                 <div class='testcase'>TestKoboSync - test_sync_shelf</div>
             </td>
-            <td colspan='6'>
-                <div class="text-center">
-                    <a class="popup_link text-center" onfocus='blur()' onclick="showTestDetail('div_ft29.10')">FAIL</a>
-                </div>
-                <!--css div popup start-->
-                <div id="div_ft29.10" class="popup_window test_output" style="display:block;">
-                    <div class='close_button pull-right'>
-                        <button type="button" class="close" aria-label="Close" onfocus="this.blur();"
-                                onclick="document.getElementById('div_ft29.10').style.display='none'"><span
-                                aria-hidden="true">&times;</span></button>
-                    </div>
-                    <div class="text-left pull-left">
-                        <pre class="text-left">Traceback (most recent call last):
-  File &#34;/home/ozzie/Development/calibre-web-test/test/test_kobo_sync.py&#34;, line 368, in test_sync_shelf
-    self.assertEqual(1, len(data), data)
-AssertionError: 1 != 0 : []</pre>
-                    </div>
-                    <div class="clearfix"></div>
-                </div>
-                <!--css div popup end-->
-            </td>
+            <td colspan='6' align='center'>PASS</td>
         </tr>
     
     
@@ -5624,9 +5613,9 @@ ModuleNotFoundError: No module named &#39;build_release&#39;</pre>
 
     <tr id='total_row' class="text-center bg-grey">
         <td>Total</td>
-        <td>498</td>
-        <td>485</td>
-        <td>1</td>
+        <td>499</td>
+        <td>487</td>
+        <td>0</td>
         <td>2</td>
         <td>10</td>
         <td>&nbsp;</td>
@@ -5656,7 +5645,7 @@ ModuleNotFoundError: No module named &#39;build_release&#39;</pre>
           
             <tr>
               <th>Platform</th>
-              <td>Linux 6.5.0-41-generic #41~22.04.2-Ubuntu SMP PREEMPT_DYNAMIC Mon Jun  3 11:32:55 UTC 2 x86_64 x86_64</td>
+              <td>Linux 6.5.0-44-generic #44~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue Jun 18 14:36:16 UTC 2 x86_64 x86_64</td>
               <td>Basic</td>
             </tr>
           
@@ -6160,7 +6149,7 @@ ModuleNotFoundError: No module named &#39;build_release&#39;</pre>
 </div>
 
 <script>
-    drawCircle(485, 1, 2, 10);
+    drawCircle(487, 0, 2, 10);
     showCase(5);
 </script>