diff --git a/downloadthread.cpp b/downloadthread.cpp
index ab3ec4d..8c51700 100644
--- a/downloadthread.cpp
+++ b/downloadthread.cpp
@@ -111,13 +111,13 @@ DownloadThread::DownloadThread( Ui::MainWindowClass* ui ) : isCanceled(false), f
 	if ( ffmpegHash.empty() ) {
 		ffmpegHash["aac"] = "%1,-vn,-acodec,copy,%2";
 		ffmpegHash["m4a"] = "%1,-id3v2_version,3,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-bsf,aac_adtstoasc,-acodec,copy,%2";
-		ffmpegHash["mp3"] = "%1,-id3v2_version,3,-write_xing,0,-write_id3v1,1,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,64k,-ac,2,%2";
-		ffmpegHash["op0"] = "%1,-id3v2_version,3,-write_xing,0,-write_id3v1,1,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,64k,-ac,1,%2";
-		ffmpegHash["op1"] = "%1,-id3v2_version,3,-write_xing,0,-write_id3v1,1,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,48k,-ar,24000,-ac,1,%2";
-		ffmpegHash["op2"] = "%1,-id3v2_version,3,-write_xing,0,-write_id3v1,1,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,40k,-ac,1,%2";
-		ffmpegHash["op3"] = "%1,-id3v2_version,3,-write_xing,0,-write_id3v1,1,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,32k,-ac,1,%2";
-		ffmpegHash["op4"] = "%1,-id3v2_version,3,-write_xing,0,-write_id3v1,1,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,24k,-ar,22050,-ac,1,%2";
-		ffmpegHash["op5"] = "%1,-id3v2_version,3,-write_xing,0,-write_id3v1,1,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,16k,-ar,22050,-ac,1,%2";
+		ffmpegHash["mp3"] = "%1,-id3v2_version,3,-write_xing,0,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,64k,-ac,2,%2";
+		ffmpegHash["op0"] = "%1,-id3v2_version,3,-write_xing,0,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,64k,-ac,1,%2";
+		ffmpegHash["op1"] = "%1,-id3v2_version,3,-write_xing,0,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,48k,-ar,24000,-ac,1,%2";
+		ffmpegHash["op2"] = "%1,-id3v2_version,3,-write_xing,0,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,40k,-ac,1,%2";
+		ffmpegHash["op3"] = "%1,-id3v2_version,3,-write_xing,0,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,32k,-ac,1,%2";
+		ffmpegHash["op4"] = "%1,-id3v2_version,3,-write_xing,0,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,24k,-ar,22050,-ac,1,%2";
+		ffmpegHash["op5"] = "%1,-id3v2_version,3,-write_xing,0,-metadata,title=%3,-metadata,artist=NHK,-metadata,album=%4,-metadata,date=%5,-metadata,genre=Speech,-vn,-acodec:a,libmp3lame,-ab,16k,-ar,22050,-ac,1,%2";
 	}
 	if ( processError.empty() ) {
 		processError[QProcess::FailedToStart] = "FailedToStart";