cdrecord not working the way expected

[Jonathan Horne]

anyone here sucessfully using cdrecord in freebsd?  -scanbus option gives me 
this error:

[root at athena ~]# cdrecord -scanbus
Cdrecord-Clone 2.01 (i386-unknown-freebsd6.1) Copyright (C) 1995-2004 Jörg 
Schilling
cdrecord: Error 0. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.

i have a feeling that the reason my DVD-CDRW isnt working in xine is probably 
rooted in the same cause.  can anyone point me in the right direction here?

[root at athena ~]# dmesg |grep acd0
acd0: CDRW <LITE-ON COMBO SOHC-4832K/OQKB> at ata0-master UDMA40
acd0: CDRW <LITE-ON COMBO SOHC-4832K/OQKB> at ata0-master UDMA40
[root at athena ~]# uname -a
FreeBSD athena.dfwlp.com 6.1-STABLE FreeBSD 6.1-STABLE #0: Wed Aug 30 13:08:08 
CDT 2006     root at athena.dfwlp.com:/usr/obj/usr/src/sys/ATHENA  i386

anything at all that can get me going on this would be much appricated!

cheers,
jonathan