cdrecord не пишет на требуемой скорости

Имеется CDRW диск 8x-12x. Хочу на 12-ой скорости записать на него исошник. 

SuSE 9.2, ядро 2.6

Но пишется только на 10-ой. В чем дело?

linux:~ # cdrecord -eject -speed=12 dev=ATA:1,0,0 /tmp/slackware-10.2-install-d1.iso
cdrecord: No write mode specified.
cdrecord: Asuming -tao mode.
cdrecord: Future versions of cdrecord may have different drive dependent defaults.
cdrecord: Continuing in 5 seconds...
Cdrecord-Clone 2.01 (i686-suse-linux) Copyright (C) 1995-2004 Jц╤rg Schilling
Note: This version is an unofficial (modified) version
Note: and therefore may have bugs that are not present in the original.
Note: Please send bug reports or support requests to http://www.suse.de/feedback
Note: The author of cdrecord should not be bothered with problems in this version.
scsidev: 'ATA:1,0,0'
devname: 'ATA'
scsibus: 1 target: 0 lun: 0
Warning: Using badly designed ATAPI via /dev/hd* interface.
Linux sg driver version: 3.5.27
Using libscg version 'schily-0.8'.
cdrecord: Warning: using inofficial libscg transport code version (okir@suse.de-scsi-linux-sg.c-1.83-resmgr-patch '@(#)scsi-linux-sg.c  1.83 04/05/20 Copyright 1997 J. Schilling').
Device type    : Removable CD-ROM
Version        : 0
Response Format: 1
Vendor_info    : 'SAMSUNG '
Identifikation : 'CDRW/DVD SN-324F'
Revision       : 'U201'
Device seems to be: Generic mmc2 DVD-ROM.
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-3 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Starting to write CD/DVD at speed 10 in real TAO mode for single session.
Last chance to quit, starting real write    0 seconds. Operation starts.