diff --git a/.gitignore b/.gitignore
index 1253b41..6844f38 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,5 @@ ometha.egg-info/
 misc/dist/
 build/
 Pipfile.lock
+*.xml
+*.json
\ No newline at end of file
diff --git a/ometha/cli.py b/ometha/cli.py
index 58cce81..092c15e 100644
--- a/ometha/cli.py
+++ b/ometha/cli.py
@@ -183,10 +183,10 @@ def convert_common_args(args):
             PRM["conf_f"],
             ["baseurl", "set", "metadataPrefix", "datengeber", "timeout", "debug"],
         )
-        PRM["n_procs"], PRM["out_p"] = read_yaml_file(
-            PRM["conf_f"], ["numberofprocesses", "outputfolder"], [16, os.getcwd()]
-        )
-        # TODO b_url is not read from the config file
+        # outputfolder: if none is defined use the current working directory
+        PRM["out_f"] = read_yaml_file(PRM["conf_f"], ["outputfolder"], os.getcwd())[0]
+        # n_procs is not given in the config file, use default value
+        PRM["n_procs"] = 16
         PRM["b_url"], PRM["pref"] = (
             re.sub(r"/\s$", "", PRM["b_url"]),
             re.sub(r"\s$", "", PRM["pref"]),
diff --git a/ometha/harvester.py b/ometha/harvester.py
index 2523102..d157a74 100644
--- a/ometha/harvester.py
+++ b/ometha/harvester.py
@@ -110,7 +110,12 @@ def save_file(oai_id: str, folder: str, response, export_type):
             except Exception as e:
                 print(f"Error converting XML to JSON: {e}")
         else:
-            print(f"Unsupported file type: {export_type}")
+            # print(f"Unsupported file type: {export_type}. Reverting to XML.")
+            # TODO this check should be done before the harvesting starts
+            with open(
+                os.path.join(folder, f"{filename}.xml"), "w", encoding="utf8"
+            ) as of:
+                of.write(response)
 
     def get_text(url, session, folder, export_type):
         oai_id = parse_qs(urlparse(url).query)["identifier"][0]
@@ -193,12 +198,24 @@ def change_date(date: str, name: str, key: str):
             yaml.safe_dump(doc, f, default_flow_style=False, sort_keys=False)
 
 
-def create_id_file(p, ids, folder, type=None):  # type kann außerdem failed sein
+def create_id_file(p, ids, folder, type=None):
+    """
+    Create an ID file with the given parameters.
+
+    Args:
+        p (dict): The parameters dictionary.
+        ids (list): The list of IDs.
+        folder (str): The folder path where the file will be created.
+        type (str, optional): The type of the file. Defaults to None.
+
+    Returns:
+        str: The path of the created file.
+    """
     # TODO add date or some other kind of identifier to the file name?
-    file = os.path.join(folder, f"{type}_ids.yaml")
+    file = os.path.join(folder, f"_ometha_{type}_ids.yaml")
     with open(file, "w", encoding="utf-8") as f:
         f.write(
-            f"Information: Liste erzeugt mit Ometha {__version__}\ndate: {TIMESTR}\nurl: {p['b_url']}\nset: {p['sets']}\nmprefix: {p['pref']}\nids:\n"
+            f"Information: Liste erzeugt mit Ometha {__version__}\ndate: {TIMESTR}\nbaseurl: {p['b_url']}\nset: {p['sets']}\nmetadataPrefix: {p['pref']}\ndatengeber: {p['dat_geb']}\ntimeout: {p['timeout']}\ndebug: {p['debug']}\nfromdate: {p['f_date']}\nuntildate: {p['u_date']}\noutputfolder: {p['out_f']}\nids:\n"
         )
         f.write("\n".join([f"- '{fid}'" for fid in ids]))
     return file
@@ -217,7 +234,7 @@ def read_yaml_file(file_path: str, keys: list, default: any = None) -> list:
         KeyError: If a key is not found in the file.
 
     Returns:
-        The values for the given keys.
+        A list containing the values for the given keys.
     """
     try:
         with open(file_path, "r", encoding="utf-8") as ymlfile:
diff --git a/ometha/main.py b/ometha/main.py
index de7b9ac..a776f9d 100644
--- a/ometha/main.py
+++ b/ometha/main.py
@@ -109,16 +109,15 @@ def start_process():
     if not PRM:
         logger.critical("No parameters were passed to Ometha.")
         sys.exit()
-    # Ordner für Log, Configfile und Output anlegen
-    print(PRM)
+    # Ordner für Log, Configfile und Output anlegen im aktuellen Verzeichnis
     if PRM["out_f"] is None:
-        PRM["out_f"] = os.path.join(application_path, "output")
+        PRM["out_f"] = os.path.join(os.getcwd(), "output")
     folder = os.path.join(PRM["out_f"], PRM["dat_geb"], TIMESTR)
     os.makedirs(folder, exist_ok=True)
 
     # Logfile anlegen
     logger.remove()  # Initalen Logger löschen, damit er nicht alles in stderr loggt:
-    log_file = os.path.join(folder, f"Ometha_{PRM['dat_geb']}.log")
+    log_file = os.path.join(folder, f"_ometha_{PRM['dat_geb']}.log")
     logger.level("PARAMETER", no=38, color="<blue>")
     logger.add(
         log_file,