private void WaitForAllBuffers()
        {
            WaveInBuffer Buf = m_Buffers;

            while (Buf.NextBuffer != m_Buffers)
            {
                Buf.WaitFor();
                Buf = Buf.NextBuffer;
            }
        }
 private void Advance()
 {
     SelectNextBuffer();
     m_CurrentBuffer.WaitFor();
 }