Steps to reproduce:
If you select an OOo wav file such as $(prefix)/share/gallery/sounds/untie.wav
as a sound events file, when that event occurs, the application will "crash"
(it's actually an abort)

Stack trace:
(backtrace from evolution)

+ Trace 60177

Other information:
the abort() is in gnome-sound.c:gnome_sound_sample_load_wav()

  for (;;)
    {
      if (fread (buf, 1, 4, f) &&
	  fread (&len, 4, 1, f))
	{
#ifdef WORDS_BIGENDIAN
	  SWAP_LONG (len);
#endif

	  if ((buf[0] != 'd') ||
	      (buf[1] != 'a') ||
	      (buf[2] != 't') ||
	      (buf[3] != 'a'))
	    fseek (f, len, SEEK_CUR);
	  else
	    {
	      s->data = g_malloc (len);

right here ----^

the problem is that 'len' is a massive value

the reason for this is because the value read from the file is corrupt
(presumably?), as also
seen from the error messages printed from esdplay:

esdplay /usr/lib/ooo-2.0/share/gallery/sounds/untie.wav 
Audio File Library: file missing data -- read 95442 frames, should be 1414285638
[error 5]
Audio File Library: file missing data -- read 95442 frames, should be 1414285638
[error 5]

it should be noted that I don't get this problem with ANY other wav files
downloaded from the net (did a google search for new email sound wav files) and
also tested against all the wav files included with GNOME (e.g. email.wav)