Vorbis - Nov 2005 - ov_read and double buffering

I am trying, for the first time, to decode and play an ogg file with two
buffers.  My audio is choppy and I can't see a problem on the wavOutxxx end
of things.  So I am wondering about how I call ov_read.  From my TRACE
statements, the read seems to work perfectly, eventually returning zero.  Is it
a simple matter of making the same call to ov_read, aside from changing the
buffer and datalength?  This is what I am doing everytime I fill one of the
buffers:

 long bytes_read = ov_read(&m_OggVorbisFile, m_WaveBuffers[m_nCurrentIndex],
m_dwBufferLength,0,2,1,&current_section);
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