diff -Naur ttcut-old/avstream/ttcommon.cpp ttcut/avstream/ttcommon.cpp
--- ttcut-old/avstream/ttcommon.cpp	2011-05-05 00:00:33.936254667 +0200
+++ ttcut/avstream/ttcommon.cpp	2011-05-05 00:03:27.396254667 +0200
@@ -51,6 +51,18 @@
   return sNewFileName;
 }
 
+// return the aspect ratio as string value
+QString ttAspectRatioText(int aspect_ratio_information)
+{
+  QString szTemp;
+
+  if ( aspect_ratio_information == 1 ) szTemp = "1:1";
+  if ( aspect_ratio_information == 2 ) szTemp = "4:3";
+  if ( aspect_ratio_information == 3 ) szTemp = "16:9";
+  if ( aspect_ratio_information == 4 ) szTemp = "2.21:1";
+
+  return szTemp;
+}
 
 // check if file fName exists
 bool ttFileExists( QString fName )
diff -Naur ttcut-old/avstream/ttcommon.h ttcut/avstream/ttcommon.h
--- ttcut-old/avstream/ttcommon.h	2011-05-05 00:00:33.936254667 +0200
+++ ttcut/avstream/ttcommon.h	2011-05-05 00:03:58.412921334 +0200
@@ -11,6 +11,7 @@
 extern "C" bool    ttDeleteFile( QString fName );
 extern "C" QString ttAddFileExt( QString fName, const char* cExt );
 extern "C" QString ttChangeFileExt( QString fName, const char* cExt );
+extern "C" QString ttAspectRatioText(int aspect_ratio_information);
 extern "C" QTime   ttMsecToTime( int msec );
 extern "C" QTime   ttMsecToTimeD( double msec );
 extern "C" QTime   ttFramesToTime(long lFrames, float fps);
diff -Naur ttcut-old/avstream/ttmpeg2videoheader.cpp ttcut/avstream/ttmpeg2videoheader.cpp
--- ttcut-old/avstream/ttmpeg2videoheader.cpp	2011-05-05 00:00:33.936254667 +0200
+++ ttcut/avstream/ttmpeg2videoheader.cpp	2011-05-05 00:05:42.999588000 +0200
@@ -170,18 +170,11 @@
 }
 
 /* /////////////////////////////////////////////////////////////////////////////
- * Returns the aspect ration as string value
+ * Returns the aspect ratio as string value
  */
 QString TTSequenceHeader::aspectRatioText()
 {
-  QString szTemp;
-
-  if ( aspect_ratio_information == 1 ) szTemp = "1:1";
-  if ( aspect_ratio_information == 2 ) szTemp = "4:3";
-  if ( aspect_ratio_information == 3 ) szTemp = "16:9";
-  if ( aspect_ratio_information == 4 ) szTemp = "2.21:1";
-
-  return szTemp;
+  return ttAspectRatioText(aspect_ratio_information);
 }
 
 /* /////////////////////////////////////////////////////////////////////////////
diff -Naur ttcut-old/avstream/ttmpeg2videostream.cpp ttcut/avstream/ttmpeg2videostream.cpp
--- ttcut-old/avstream/ttmpeg2videostream.cpp	2011-05-05 00:00:33.936254667 +0200
+++ ttcut/avstream/ttmpeg2videostream.cpp	2011-05-05 00:00:43.579588002 +0200
@@ -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 );
@@ -1538,7 +1538,7 @@
   TTTranscodeProvider* transcode_prov = new TTTranscodeProvider( );
   transcode_prov->setParameter( enc_par );
 
-  // encode the part with transcode
+  // encode the part with ffmpeg
   if ( transcode_prov->encodePart() )
   {
     new_file_info.setFile( temp_dir, "encode.m2v" );
@@ -1565,7 +1565,7 @@
   }
   else
   {
-    log->errorMsg(c_name, "Error in transcode part (!)");
+    log->errorMsg(c_name, "Error in ffmpeg part (!)");
   }
 
   // remove temporary files
diff -Naur ttcut-old/extern/tttranscode.cpp ttcut/extern/tttranscode.cpp
--- ttcut-old/extern/tttranscode.cpp	2011-05-05 00:00:33.939588000 +0200
+++ ttcut/extern/tttranscode.cpp	2011-05-05 00:02:27.062921334 +0200
@@ -49,9 +49,9 @@
   // message logger instance
   log = TTMessageLogger::getInstance();
   
-  QString str_head = "starting encoder >>>transcode -y ffmpeg<<<";
+  QString str_head = "starting encoder >>>ffmpeg<<<";
 
-  str_command       = "transcode";
+  str_command       = "ffmpeg";
   transcode_success = false;
 
   setModal( true );
@@ -76,7 +76,7 @@
 {
 #if defined (TTTRANSCODE_DEBUG)
   log->debugMsg( c_name, "----------------------------------------------------" );
-  log->debugMsg( c_name, "transcode parameter:" );
+  log->debugMsg( c_name, "ffmpeg parameter:" );
   log->debugMsg( c_name, "----------------------------------------------------" );
   log->debugMsg( c_name, "avi-file    : %s",    qPrintable(enc_par.avi_input_finfo.absoluteFilePath()) );
   log->debugMsg( c_name, "mpeg-file   : %s",    qPrintable(enc_par.mpeg2_output_finfo.absoluteFilePath()) );
@@ -86,32 +86,32 @@
   log->debugMsg( c_name, "----------------------------------------------------" );
 #endif
 
-  //transcode -i encode.avi --pre_clip 0 -y ffmpeg --export_prof dvd-pal --export_asr 2 -o encode
   QString str_aspect;
-  str_aspect.sprintf("%d",enc_par.video_aspect_code );
+  str_aspect = ttAspectRatioText(enc_par.video_aspect_code);
 
   QString str_format;
   str_format.sprintf("%dx%d", enc_par.video_width, enc_par.video_height);
 
   QString str_bitrate;
-  str_bitrate.sprintf("%f", enc_par.video_bitrate);
+  str_bitrate.sprintf("%.0f", enc_par.video_bitrate);
+
+  QString str_aspect_opt;
+  str_aspect_opt = "setdar=";
+
+  str_aspect_opt += str_aspect;
 
   strl_command_line.clear();
 
   strl_command_line << "-i"
-		    << enc_par.avi_input_finfo.absoluteFilePath()
-		    << "--pre_clip"
-		    << "0"
-		    //<< "-y"               // isn't neccessary unless --export_prof is specified!
-		    //<< "mpeg2enc,mp2enc"  // mpeg2enc->video, mp2enc->audio!
-        //<< "-F"
-        //<< "8,\"-v 1 -q 3\""
-		    << "--export_prof"
-		    << "dvd"            // dvd-pal
-		    << "--export_asr"
-		    << str_aspect
-		    << "-o"
-		    << enc_par.mpeg2_output_finfo.absoluteFilePath();
+            << enc_par.avi_input_finfo.absoluteFilePath()
+            << "-y"
+            << "-target"
+            << "dvd" //autodetects pal/ntsc
+            << "-f"
+            << "mpeg2video" //else ffmpeg creates an mpegps stream that mplex can not handle
+            << "-vf"
+            << str_aspect_opt //workaround for mpeg2video not preserving aspect ratio in combination with --enable-avfilter
+            << enc_par.mpeg2_output_finfo.absoluteFilePath();
 
   log->infoMsg(c_name, strl_command_line.join(" "));
 }
@@ -124,7 +124,7 @@
   int update        = EVENT_LOOP_INTERVALL;     //update intervall for local event loop
   transcode_success = false;      
   
-  // create the process object for transcode
+  // create the process object for ffmpeg
   proc = new QProcess();
   
   // read both channels: stderr and stdout
@@ -197,12 +197,12 @@
   switch (e_status) {
     case QProcess::NormalExit:
       //log->debugMsg(c_name, "The process ecxited normally: %d", e_code);
-      procMsg = tr("Transcode exit normally ... done(0)");
+      procMsg = tr("ffmpeg exit normally ... done(0)");
       transcode_success = true;
       break;
     case QProcess::CrashExit:
       //log->debugMsg(c_name, "The process crashed: %d", e_code);
-      procMsg = tr("Transcode crashed");
+      procMsg = tr("ffmpeg crashed");
       transcode_success = false;
       break;
     default: