diff --git a/cinelerra-5.1/cinelerra/proxy.C b/cinelerra-5.1/cinelerra/proxy.C
index 64897df9..190a92c1 100644
--- a/cinelerra-5.1/cinelerra/proxy.C
+++ b/cinelerra-5.1/cinelerra/proxy.C
@@ -85,8 +85,8 @@ ProxyDialog::ProxyDialog(MWindow *mwindow)
 
 // quicker than some, not as good as others
 	asset->format = FILE_FFMPEG;
-	strcpy(asset->fformat, "mpeg");
-	strcpy(asset->vcodec, "mpeg.mpeg");
+	strcpy(asset->fformat, "mov");
+	strcpy(asset->vcodec, "mov.mov");
 	asset->ff_video_bitrate = 2000000;
 	asset->video_data = 1;