new file mode 100644
--- /dev/null
+++ b/pytouhou/formats/msg.py
@@ -0,0 +1,90 @@
+# -*- encoding: utf-8 -*-
+##
+## Copyright (C) 2011 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published
+## by the Free Software Foundation; version 3 only.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+
+import struct
+from struct import pack, unpack, calcsize
+from pytouhou.utils.helpers import read_string
+
+from pytouhou.utils.helpers import get_logger
+
+logger = get_logger(__name__)
+
+class MSG(object):
+    _instructions = {0: ('', None),
+                     1: ('hh', None),
+                     2: ('hh', 'change_face'),
+                     3: ('hhs', 'display_dialog_line'),
+                     4: ('I', 'pause'),
+                     5: ('hh', 'switch'),
+                     6: ('', 'add_enemy_sprite'),
+                     7: ('I', 'change_music'),
+                     8: ('hhs', 'display_character_line'),
+                     9: ('I', None),
+                     10: ('', None),
+                     11: ('', 'next_level'),
+                     12: ('', None),
+                     13: ('I', None),
+                     14: ('', None)} #TODO
+
+
+    def __init__(self):
+        self.msgs = [[]]
+
+
+    @classmethod
+    def read(cls, file):
+        entry_count, = unpack('<I', file.read(4))
+        entry_offsets = unpack('<%dI' % entry_count, file.read(4 * entry_count))
+
+        msg = cls()
+        msg.msgs = []
+
+        new_entry = True
+        while True:
+            offset = file.tell()
+
+            try:
+                time, opcode, size = unpack('<HBB', file.read(4))
+            except:
+                return
+
+            if time == 0 and opcode == 0:
+                new_entry = True
+
+            if new_entry and opcode != 0:
+                new_entry = False
+                time = -1
+                if offset in entry_offsets:
+                    #print(entry_offsets.index(offset))
+                    msg.msgs.append([])
+
+            data = file.read(size)
+
+            if opcode in cls._instructions:
+                fmt = '<%s' % cls._instructions[opcode][0]
+                if fmt.endswith('s'):
+                    fmt = fmt[:-1]
+                    fmt = '%s%ds' % (fmt, size - calcsize(fmt))
+                args = unpack(fmt, data)
+                if fmt.endswith('s'):
+                    args = args[:-1] + (args[-1].decode('shift_jis'),)
+            else:
+                args = (data, )
+                logger.warn('unknown msg opcode %d', opcode)
+
+            msg.msgs[-1].append((time, opcode, args))
+
+
+        return msg
+