Strange "cdrdao scanbus" error

[Tong <mlist4suntong@yahoo.com>]

Hi, 

Whenever I do cdrdao scanbus, I get strange "unknow subsystem" errors
between the output:

- - - - >8 - - - -
$ cdrdao scanbus
Cdrdao version 1.1.9 - (C) Andreas Mueller <andreas@daneb.de>
  SCSI interface library - (C) Joerg Schilling
  Paranoia DAE library - (C) Monty

Check http://cdrdao.sourceforge.net/drives.html#dt for current driver tables.

Using libscg version 'schily-0.8'

2,0,0 : SONY    , CD-RW  CRX195E1 , ZYS5
qd=": ERROR: unknow subsystem (scd0) in (/dev/sr0)
ATAPI:0,0,0          HL-DT-ST, CD-RW GCE-8526B , 1.03
ATAPI:0,1,0          Toshiba , DVD-ROM SD-M1712, 1808
- - - - >8 - - - -

What is wrong? Please help. Thanks

tong