format  void STM_ConnectCdbuf (StmHn keystm, StmHn bufstm)
 Input  keystm: Connection source stream handle
:  bufstm: Connection destination stream handle (STM_CON_NULBUF for disconnection)
 Output  None
 Function value  None
 Function  Connects the aperture and buffer section in the CD block.
 Remarks  (a) From the aperture assigned to the connection source stream to the connection destination stream
 Read  Reads to the assigned CD buffer section.
:  (b) To return to the original setting, specify the same stream handle as the connection source.
.  (c) Connection when the stream key is set to the OR condition.

  (d) Only a CD stream can be specified. 

  format  void STM_MoveCdbuf (StmHn src, Sint32 spos, Sint32 snum, StmHn dst)
 Input  src: Source stream handle
:  spos: Sector position (first sector is STM_CDBUF_TOP)
  snum: Number of sectors (STM_CDBUF_END for the end)
:  dst: destination stream handle
 Output  None
 Function value  None
 Function  Moves sector data from the buffer section in the CD block to the aperture.
 Remarks  (a) From the CD buffer section assigned to the source stream, the destination stream
 Sector data is moved to the aperture assigned to the ream.

(B) Only a CD stream can be specified.