burn cd/dvd: permission /dev/sg0 denied

[antonio giulio <antongiulio05@gmail.com>]

Hi,

I'm trying to burn a backup dvd of partition or single file in cd, but
I got permission /dev/sg0 denied.

ls -l /dev/sg0
crw-------  1 root root 21, 0 2005-06-02 23:22 /dev/sg0
It seems right permissions...

cdrecord --scanbus returns:
........ various notes
cdrecord: Warning: Running on Linux-2.6.11-9-amd64-k8
cdrecord: There are unsettled issues with Linux-2.5 and newer.
cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot
open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.
cdrecord:
cdrecord: For more information, install the cdrtools-doc
cdrecord: package and read /usr/share/doc/cdrecord/README.ATAPI.setup .

cdrecord dev=help returns:
cdrecord: Warning: Running on Linux-2.6.11-9-amd64-k8
cdrecord: There are unsettled issues with Linux-2.5 and newer.
cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
Supported SCSI transports for this platform:

Transport name:         sg
Transport descr.:       Generic transport independent SCSI
Transp. layer ind.:
Target specifier:       bus,target,lun
Target example:         1,2,0
SCSI Bus scanning:      supported
Open via UNIX device:   not supported

Transport name:         pg
Transport descr.:       SCSI transport for ATAPI over Parallel Port
Transp. layer ind.:
Target specifier:       bus,target,lun
Target example:         1,2,0
SCSI Bus scanning:      supported
Open via UNIX device:   not supported

ecc.

Have you any idea? I have not changed kernel. Maybe a udev update in
these last days for 'unstable' debian tree?

Thanks,
Giulio