diff --git a/debian/changelog b/debian/changelog
index 1e57dae..88bd1ca 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+klette (0.4) UNRELEASED; urgency=low
+
+  * Support multiple data files
+
+ -- Adrian Heine <mail@adrianheine.de>  Tue, 17 Sep 2024 20:10:00 +0200
+
 klette (0.3) UNRELEASED; urgency=low
 
   * Add --otra-vez
diff --git a/main.py b/main.py
index bfe6d88..f283392 100644
--- a/main.py
+++ b/main.py
@@ -4,15 +4,18 @@ import pyamf
 import shutil
 import json
 import os
+import glob
 import argparse
 import unicodedata
 import random
 import re
 import sys
 import readline
+import datetime
 
 DATA_DIR = os.environ.get('XDG_DATA_HOME', os.environ['HOME'] + '/.local/share') + '/klette'
-VOKABELN_FILE = DATA_DIR + '/vokabeln.json'
+DEPRECATED_VOKABELN_FILE = DATA_DIR + '/vokabeln.json'
+VOKABELN_DIR = DATA_DIR + '/vokabeln/'
 STATUS_FILE = DATA_DIR + '/status.json'
 AUDIO_BASE = DATA_DIR + '/audio/'
 
@@ -49,9 +52,10 @@ def import_vokabeln(file_name, audio_base):
                             'unidad': unidad,
                             'paso': paso
                     })
-                    shutil.copy2(audio_base + audio + '.bin',
-                                 AUDIO_BASE + audio + '.aac')
-    with open(VOKABELN_FILE, 'x') as writer:
+                    if audio:
+                        shutil.copy2(audio_base + audio + '.bin',
+                                     AUDIO_BASE + audio + '.aac')
+    with open(VOKABELN_DIR + '/import-' + datetime.datetime.now().isoformat() + '.json', 'x') as writer:
         writer.write(json.dumps(palabras))
 
 def import_status(file_name):
@@ -203,12 +207,12 @@ class Sesion:
     def hace_paso(self, unidad, paso, cur_palabras):
         c = [len(cur_palabras[x]) for x in cur_palabras]
         print(f"{bcolors.BOLD}{unidad}{bcolors.ENDC}: {paso} ({c[0] + c[6]}/{c[1]}/{c[2]}/{c[3]}/{c[4]}/{bcolors.OKGREEN}{c[5]}{bcolors.ENDC})")
-        for n in range(5): # 1..4, no 5
-            if self.hace_palabras(cur_palabras[n], n) == Resultado.ADIOS:
-                return Resultado.ADIOS
         n = None
         if self.hace_palabras(cur_palabras[n], n) == Resultado.ADIOS:
             return Resultado.ADIOS
+        for n in range(5): # 1..4, no 5
+            if self.hace_palabras(cur_palabras[n], n) == Resultado.ADIOS:
+                return Resultado.ADIOS
 
     def hace_palabras(self, palabras, status):
         random.shuffle(palabras)
@@ -237,12 +241,24 @@ class Sesion:
 
 def abfrage(parser, quiero_unidad, otra_vez):
     random.seed()
+    status = {}
+    palabras = []
+    os.makedirs(VOKABELN_DIR, exist_ok=True)
+    try:
+        os.rename(DEPRECATED_VOKABELN_FILE, os.path.join(VOKABELN_DIR, 'vokabeln.json'))
+    except FileNotFoundError:
+        pass
+
+    for filename in glob.glob(os.path.join(VOKABELN_DIR, '*.json')):
+        with open(filename, 'r') as f:
+            palabras += json.load(f)
     try:
-        with open(VOKABELN_FILE, 'r') as f:
-            palabras = json.load(f)
         with open(STATUS_FILE, 'r') as f:
             status = json.load(f)
     except FileNotFoundError:
+        pass
+
+    if len(palabras) == 0:
         print(f"{bcolors.FAIL}Daten können nicht geladen werden, hast du sie schon importiert?{bcolors.ENDC}")
         print()
         parser.print_help()
@@ -255,7 +271,6 @@ def abfrage(parser, quiero_unidad, otra_vez):
     print(f'{bcolors.OKGREEN}+{sesion.bien}{bcolors.ENDC} / {bcolors.FAIL}-{sesion.mal}{bcolors.ENDC}')
 
 parser = argparse.ArgumentParser()
-default_data_file = os.environ['PWD'] + '/assets/amf/vokabelTrainer147.amf'
 parser.add_argument('--import-data', type=str, help="Path to assets", metavar="DIR")
 default_status_file = os.environ['HOME'] + '/klett/1266/vokabeltrainerData147'
 parser.add_argument('--import-status', type=str, help="Path to AMF File, defaults to " + default_status_file, metavar="FILE", nargs='?', const=default_status_file)
@@ -264,7 +279,7 @@ parser.add_argument('--otra-vez', action='store_true')
 args = parser.parse_args()
 
 if args.import_data:
-    import_vokabeln(args.import_data + '/amf/vokabelTrainer147.amf',
+    import_vokabeln(glob.glob(os.path.join(args.import_data, 'amf/vokabelTrainer*.amf'))[0],
                     args.import_data + '/amf/medium/')
 elif args.import_status:
     import_status(args.import_status)