diff --git a/media/libtremor/lib/misc.h b/media/libtremor/lib/misc.h
index 2fc521a244..1ae4d2e813 100644
--- a/media/libtremor/lib/misc.h
+++ b/media/libtremor/lib/misc.h
@@ -49,7 +49,9 @@ union magic {
   } halves;
   ogg_int64_t whole;
 };
-#elif BYTE_ORDER==BIG_ENDIAN
+#endif 
+
+#if BYTE_ORDER==BIG_ENDIAN
 union magic {
   struct {
     ogg_int32_t hi;
diff --git a/media/libtremor/lib/tremor_floor0.c b/media/libtremor/lib/tremor_floor0.c
index 9f3ef56014..964383eff0 100644
--- a/media/libtremor/lib/tremor_floor0.c
+++ b/media/libtremor/lib/tremor_floor0.c
@@ -328,6 +328,7 @@ static vorbis_info_floor *floor0_unpack (vorbis_info *vi,oggpack_buffer *opb){
     info->books[j]=oggpack_read(opb,8);
     if(info->books[j]<0 || info->books[j]>=ci->books)goto err_out;
     if(ci->book_param[info->books[j]]->maptype==0)goto err_out;
+    if(ci->book_param[info->books[j]]->dim<1)goto err_out;
   }
   return(info);
 
diff --git a/media/libtremor/lib/tremor_floor1.c b/media/libtremor/lib/tremor_floor1.c
index 12a687ec53..e63ae9fb34 100644
--- a/media/libtremor/lib/tremor_floor1.c
+++ b/media/libtremor/lib/tremor_floor1.c
@@ -426,7 +426,7 @@ static int floor1_inverse2(vorbis_block *vb,vorbis_look_floor *in,void *memo,
     int hx=0;
     int lx=0;
     int ly=fit_value[0]*info->mult;
-    /* guard lookup against out-of-rage values */
+    /* guard lookup against out-of-range values */
     ly=(ly<0?0:ly>255?255:ly);
 
     for(j=1;j<look->posts;j++){
@@ -436,10 +436,9 @@ static int floor1_inverse2(vorbis_block *vb,vorbis_look_floor *in,void *memo,
 	
 	hx=info->postlist[current];
 	hy*=info->mult;
-        /* guard lookup against out-of-rage values */
+        /* guard lookup against out-of-range values */
         hy=(hy<0?0:hy>255?255:hy);
 
-
 	render_line(n,lx,hx,ly,hy,out);
 	
 	lx=hx;
diff --git a/media/libtremor/lib/tremor_info.c b/media/libtremor/lib/tremor_info.c
index 3f3308ef95..24e24ac728 100644
--- a/media/libtremor/lib/tremor_info.c
+++ b/media/libtremor/lib/tremor_info.c
@@ -227,7 +227,6 @@ static int _vorbis_unpack_comment(vorbis_comment *vc,oggpack_buffer *opb){
 static int _vorbis_unpack_books(vorbis_info *vi,oggpack_buffer *opb){
   codec_setup_info     *ci=(codec_setup_info *)vi->codec_setup;
   int i;
-  if(!ci)return(OV_EFAULT);
 
   /* codebooks */
   ci->books=oggpack_read(opb,8)+1;
@@ -367,6 +366,10 @@ int vorbis_synthesis_headerin(vorbis_info *vi,vorbis_comment *vc,ogg_packet *op)
 	  /* um... we didn't get the initial header */
 	  return(OV_EBADHEADER);
 	}
+        if(vc->vendor!=NULL){
+          /* previously initialized comment header */
+          return(OV_EBADHEADER);
+        }
 
 	return(_vorbis_unpack_comment(vc,&opb));
 
@@ -375,6 +378,14 @@ int vorbis_synthesis_headerin(vorbis_info *vi,vorbis_comment *vc,ogg_packet *op)
 	  /* um... we didn;t get the initial header or comments yet */
 	  return(OV_EBADHEADER);
 	}
+        if(vi->codec_setup==NULL){
+          /* improperly initialized vorbis_info */
+          return(OV_EFAULT);
+        }
+        if(((codec_setup_info *)vi->codec_setup)->books>0){
+          /* previously initialized setup header */
+          return(OV_EBADHEADER);
+        }
 
 	return(_vorbis_unpack_books(vi,&opb));
 
diff --git a/media/libtremor/lib/tremor_mdct.c b/media/libtremor/lib/tremor_mdct.c
index 4f39e7d531..2aed62c51c 100644
--- a/media/libtremor/lib/tremor_mdct.c
+++ b/media/libtremor/lib/tremor_mdct.c
@@ -13,7 +13,7 @@
 
  function: normalized modified discrete cosine transform
            power of two length transform only [64 <= n ]
- last mod: $Id: mdct.c,v 1.9 2002/10/16 09:17:39 xiphmont Exp $
+ last mod: $Id$
 
  Original algorithm adapted long ago from _The use of multirate filter
  banks for coding of high quality digital audio_, by T. Sporer,
diff --git a/media/libtremor/lib/tremor_synthesis.c b/media/libtremor/lib/tremor_synthesis.c
index c7680f6d02..d22cb823c1 100644
--- a/media/libtremor/lib/tremor_synthesis.c
+++ b/media/libtremor/lib/tremor_synthesis.c
@@ -67,7 +67,7 @@ static int _vorbis_synthesis1(vorbis_block *vb,ogg_packet *op,int decodep){
   
   /* more setup */
   vb->granulepos=op->granulepos;
-  vb->sequence=op->packetno-3; /* first block is third packet */
+  vb->sequence=op->packetno; /* first block is third packet */
   vb->eofflag=op->e_o_s;
 
   if(decodep){