diff --git a/sw/in_progress/videolizer/README b/sw/in_progress/videolizer/README
index 5a0a1be6bb..0161574432 100644
--- a/sw/in_progress/videolizer/README
+++ b/sw/in_progress/videolizer/README
@@ -19,17 +19,25 @@ with (maybe adjust the NORM)
 
  mplayer tv:// -tv driver=v4l2:width=320:height=240:norm=NTSC:input=0:device=/dev/video0:noaudio -ao noalsa -nolirc -nomouseinput -really-quiet
 
-or build spook and use it to distribute through rtsp
+or build spook and use it to distribute through rtsp, get Debian package 
+libxvidcore4-dev before configuring it
 
+ apt-get install libxvidcore4-dev
  cd spook
+ ./configure
  make
 
-as the v4l-dvb-kernel updates some parts of the video4linux interface, just
-building wis does not work. if you want to use the Plextor M402U you have to
-use a patched (this is evil) Module.symvers. Either use the one provided or
-copy the symbol hashes over from the *.mod.c files. generate the headers
+start spook and watch video through vlc (mplayer) from it
+
+ vlc rtsp://localhost:7070/webcam
+
+for the Plextor, it can NOT be used at the same time as the Pollin,
+v4l changes the kernel symbols and wis can not work with that
+re-install the kernel if you want to use it
+
+changing the kernel symvers somehow does not work
 
  cd v4l-dvb-kernel
  sudo make kernel-headers
 
-then build wis-go7007 
+build wis-go7007 
diff --git a/sw/in_progress/videolizer/spook/encoder-mpeg4.c b/sw/in_progress/videolizer/spook/encoder-mpeg4.c
index 0469b3e0b5..3bfc35e851 100644
--- a/sw/in_progress/videolizer/spook/encoder-mpeg4.c
+++ b/sw/in_progress/videolizer/spook/encoder-mpeg4.c
@@ -1,3 +1,4 @@
+#define SPOOK_DEINTERLACE 1
 /*
  * Copyright (C) 2004 Nathan Lutchansky <lutchann@litech.org>
  *
@@ -67,7 +68,11 @@ static void mpeg4_start( struct mpeg4_encoder *en, struct frame *f )
 
 	en->reset_pending = 0;
 	en->width = f->width;
+#ifdef SPOOK_DEINTERLACE
+	en->height = f->height/2;
+#else	
 	en->height = f->height;
+#endif
 
 	memset( &xvid_enc_create, 0, sizeof( xvid_enc_create ) );
 	xvid_enc_create.version = XVID_VERSION;
@@ -128,6 +133,24 @@ static void *mpeg4_loop( void *d )
 		if( en->reset_pending && en->xvid_handle ) mpeg4_stop( en );
 		if( ! en->xvid_handle ) mpeg4_start( en, input );
 
+#ifdef SPOOK_DEINTERLACE
+		if( input->width != en->width || input->height != en->height*2 )
+		{
+			spook_log( SL_WARN,
+				"mpeg4: image size changed midstream!" );
+			unref_frame( input );
+			continue;
+		}
+		
+		{
+			int lines;
+			char *YUY2 = input->d;
+			for (lines = 0; lines < en->height; lines++)
+		    {
+				memcpy(YUY2 + (lines * en->width * 2), YUY2 + (lines * en->width * 2 * 2), en->width*2);
+			}
+		}
+#else		
 		if( input->width != en->width || input->height != en->height )
 		{
 			spook_log( SL_WARN,
@@ -135,6 +158,7 @@ static void *mpeg4_loop( void *d )
 			unref_frame( input );
 			continue;
 		}
+#endif		
 
 		mpeg = new_frame();