diff -ur vorbis-tools-1.2.0.orig/ogg123/speex_format.c vorbis-tools-1.2.0/ogg123/speex_format.c

--- vorbis-tools-1.2.0.orig/ogg123/speex_format.c	2008-03-03 07:37:26.000000000 +0200

+++ vorbis-tools-1.2.0/ogg123/speex_format.c	2008-04-14 16:47:22.000000000 +0300

@@ -475,7 +475,7 @@

            cb->printf_error(callback_arg, ERROR, _("Cannot read header"));

      return NULL;

    }

-   if ((*header)->mode >= SPEEX_NB_MODES) {

+   if ((*header)->mode >= SPEEX_NB_MODES || (*header)->mode < 0) {

      cb->printf_error(callback_arg, ERROR, 

 		      _("Mode number %d does not (any longer) exist in this version"),

 	      (*header)->mode);