diff -Naur ttcut-old/avstream/ttmpeg2videostream.cpp ttcut/avstream/ttmpeg2videostream.cpp
--- ttcut-old/avstream/ttmpeg2videostream.cpp	2007-09-02 13:15:09.000000000 +0200
+++ ttcut/avstream/ttmpeg2videostream.cpp	2010-01-20 00:08:53.000000000 +0100
@@ -1505,7 +1505,7 @@
 
   QDir    temp_dir( TTCut::tempDirPath );
   QString avi_out_file   = "encode.avi";
-  QString mpeg2_out_file = "encode";          // extension is added by transcode (!)
+  QString mpeg2_out_file = "encode.m2v";
   new_file_info.setFile( temp_dir, avi_out_file );
   
   TTPicturesHeader* start_pic = header_list->pictureHeaderAt( start );
diff -Naur ttcut-old/extern/tttranscode.cpp ttcut/extern/tttranscode.cpp
--- ttcut-old/extern/tttranscode.cpp	2007-05-26 08:22:03.000000000 +0200
+++ ttcut/extern/tttranscode.cpp	2010-01-20 00:10:01.000000000 +0100
@@ -100,6 +100,8 @@
 
   strl_command_line << "-i"
 		    << enc_par.avi_input_finfo.absoluteFilePath()
+		    << "-x"
+		    << "avi"
 		    << "--pre_clip"
 		    << "0"
 		    //<< "-y"               // isn't neccessary unless --export_prof is specified!