Index: libhb/hb.c
===================================================================
--- libhb/hb.c	(revision 2480)
+++ libhb/hb.c	(working copy)
@@ -436,7 +436,7 @@
     hb_get_tempory_filename( h, filename, "%" PRIxPTR "%d",
                              (intptr_t) title, picture );

-    file = fopen( filename, "r" );
+    file = fopen( filename, "rb" );
     if( !file )
     {
         hb_log( "hb_get_preview: fopen failed" );
Index: libhb/stream.c
===================================================================
--- libhb/stream.c	(revision 2480)
+++ libhb/stream.c	(working copy)
@@ -470,7 +470,7 @@
  **********************************************************************/
 hb_stream_t * hb_stream_open( char *path, hb_title_t *title )
 {
-    FILE *f = fopen( path, "r" );
+    FILE *f = fopen( path, "rb" );
     if ( f == NULL )
     {
         hb_log( "hb_stream_open: open %s failed", path );
Index: libhb/scan.c
===================================================================
--- libhb/scan.c	(revision 2480)
+++ libhb/scan.c	(working copy)
@@ -600,7 +600,7 @@
             hb_get_tempory_filename( data->h, filename, "%" PRIxPTR "%d",
                                      (intptr_t)title, i );

-            file_preview = fopen( filename, "w" );
+            file_preview = fopen( filename, "wb" );
             if( file_preview )
             {
                 fwrite( vid_buf->data, title->width * title->height * 3 / 2,