diff --git a/lib/Msg.py b/lib/Msg.py
index 514295f..ca0514f 100644
--- a/lib/Msg.py
+++ b/lib/Msg.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python2
 # -*- coding: UTF-8 -*-
 # File: Msg.py
-# Date: Sat Nov 22 08:09:56 2014 +0800
+# Date: Sat Nov 22 20:58:01 2014 +0800
 # Author: Yuxin Wu <ppwwyyxxc@gmail.com>
 
 from datetime import datetime
@@ -38,6 +38,10 @@ class WeChatMsg(object):
         if self.content:
             self.content = ensure_unicode(self.content)
 
+    def msg_html(self, res):
+        # TODO
+        assert res is not None
+
     def msg_str(self):
         # TODO: fix more types
         if self.type == TYPE_LOCATION:
diff --git a/lib/Parser.py b/lib/Parser.py
index a9e1672..6e55f65 100644
--- a/lib/Parser.py
+++ b/lib/Parser.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python2
 # -*- coding: UTF-8 -*-
 # File: Parser.py
-# Date: Sat Nov 22 08:07:56 2014 +0800
+# Date: Sat Nov 22 20:48:04 2014 +0800
 # Author: Yuxin Wu <ppwwyyxxc@gmail.com>
 
 import sqlite3
@@ -9,6 +9,7 @@ from collections import defaultdict
 import itertools
 
 from .Msg import WeChatMsg
+from .Res import Resource
 from .utils import ensure_unicode
 
 """ tables in concern:
@@ -22,7 +23,7 @@ rcontact
 """
 
 class WeChatDBParser(object):
-    def __init__(self, db_fname):
+    def __init__(self, db_fname, res_dir=None):
         """ db_fname: EnMicroMsg.db"""
         self.db_fname = db_fname
         self.db_conn = sqlite3.connect(self.db_fname)
@@ -30,6 +31,8 @@ class WeChatDBParser(object):
         self.contacts = {}
         self.msgs_by_talker = defaultdict(list)
 
+        self.res = Resource(res_dir) if res_dir else None
+
     def _parse_contact(self):
         contacts = self.cc.execute(
 """
@@ -63,7 +66,7 @@ SELECT {} FROM message
         if msgs is None:
             msgs = itertools.chain.from_iterable(self.msgs_by_talker.itervalues())
         for msg in msgs:
-            if msg.type == 43:
+            if msg.type == 34:
                 ret.append(msg)
         return sorted(ret)
 
diff --git a/lib/Res.py b/lib/Res.py
new file mode 100644
index 0000000..b9694bd
--- /dev/null
+++ b/lib/Res.py
@@ -0,0 +1,37 @@
+#!/usr/bin/env python2
+# -*- coding: UTF-8 -*-
+# File: Res.py
+# Date: Sat Nov 22 20:54:25 2014 +0800
+# Author: Yuxin Wu <ppwwyyxxc@gmail.com>
+
+import glob
+import os
+
+VOICE_DIRNAME = 'voice2'
+
+class Resource(object):
+    """ multimedia resources in chat"""
+    def __init__(self, res_dir):
+        assert os.path.isdir(res_dir), "No such directory: {}".format(res_dir)
+        self.res_dir = res_dir
+        self.init()
+
+    def init(self):
+        """ load some index in memory"""
+        self.speak_data = {}
+        for root, subdirs, files in os.walk(
+            os.path.join(self.res_dir, VOICE_DIRNAME)):
+            if subdirs:
+                continue
+            for f in files:
+                if not f.endswith('amr'):
+                    continue
+                full_path = os.path.join(root, f)
+                key = f[4:-4]  # msg_xxxxx.amr
+                assert len(key) == 26, \
+                    "Error interpreting the protocol, this is a bug!"
+                self.speak_data[key] = full_path
+
+
+
+