Index: libao2/ao_win32.c
===================================================================
--- libao2/ao_win32.c   (revision 20253)
+++ libao2/ao_win32.c   (working copy)
@@ -322,6 +322,7 @@
 // return: number of bytes played
 static int play(void* data,int len,int flags)
 {
+       if (!(flags & AOPLAY_FINAL_CHUNK))
        len = (len/ao_data.outburst)*ao_data.outburst;
        return write_waveOutBuffer(data,len);
 }