Index: libmpdemux/demux_real.c
===================================================================
RCS file: /cvsroot/mplayer/main/libmpdemux/demux_real.c,v
retrieving revision 1.60
diff -u -r1.60 demux_real.c
--- libmpdemux/demux_real.c	25 Jun 2004 18:45:56 -0000	1.60
+++ libmpdemux/demux_real.c	9 Aug 2004 19:01:12 -0000
@@ -1044,6 +1044,11 @@
 		codec_data_size = stream_read_dword(demuxer->stream);
 		codec_pos = stream_tell(demuxer->stream);
 
+		if (!codec_data_size) {
+		  mp_msg(MSGT_DEMUX,MSGL_DBG2,"demux_real: no codec data in MDPR chunk at fpos=0x%X\n", codec_pos);
+		  break;
+		}
+
 		tmp = stream_read_dword(demuxer->stream);
 		
 		mp_msg(MSGT_DEMUX,MSGL_DBG2,"demux_real: type_spec: len=%d  fpos=0x%X  first_dword=0x%X (%.4s)  \n",