root@silas:~# time cdrecord -v dev=/dev/sr1 /home/mingdao/slackware-current-install1.iso
cdrecord: No write mode specified.
cdrecord: Asuming -sao mode.
cdrecord: If your drive does not accept -sao, try -tao.
cdrecord: Future versions of cdrecord may have different drive dependent defaults.
Cdrecord-ProDVD-ProBD-Clone 2.01.01a37 (i686-pc-linux-gnu) Copyright (C) 1995-2008 J�rg Schilling
TOC Type: 1 = CD-ROM
scsidev: '/dev/sr1'
devname: '/dev/sr1'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
Using libscg version 'schily-0.9'.
SCSI buffer size: 64512
atapi: 1
Device type    : Removable CD-ROM
Version        : 5
Response Format: 2
Capabilities   :
Vendor_info    : 'TSSTcorp'
Identifikation : 'CD/DVDW TS-H552U'
Revision       : 'US06'
Device seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM.
Current: CD-RW
Profile: DVD+R/DL
Profile: DVD+R
Profile: DVD+RW
Profile: DVD-RW sequential recording
Profile: DVD-RW restricted overwrite
Profile: DVD-R sequential recording
Profile: DVD-ROM
Profile: CD-RW (current)
Profile: CD-R
Profile: CD-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
Drive buf size : 1968384 = 1922 KB
FIFO size      : 4194304 = 4096 KB
Track 01: data   685 MB
Total size:      787 MB (77:58.66) = 350900 sectors
Lout start:      787 MB (78:00/50) = 350900 sectors
Current Secsize: 2048
ATIP info from disk:
  Indicated writing power: 3
  Reference speed: 6
Disk Is not unrestricted
Disk Is erasable
  Disk sub type: High speed Rewritable (CAV) media (1)
  ATIP start of lead in:  -11745 (97:25/30)
  ATIP start of lead out: 359848 (79:59/73)
  1T speed low:  4 1T speed high: 10
  2T speed low:  4 2T speed high:  0 (reserved val  6)
  power mult factor: 1 5
  recommended erase/write power: 5
  A1 values: 24 1A D8
  A2 values: 26 B2 4A
Disk type:    Phase change
Manuf. index: 40
Manufacturer: INFODISC Technology Co., Ltd.

    Capacity  Blklen/Sparesz.  Format-type  Type
      359848             2048         0x00  Unformated or Blank Media
           0               32         0x10  Reserved (0)
           0               32         0x11  Reserved (0)
           0               32         0x12  Reserved (0)
Blocks total: 359848 Blocks current: 359848 Blocks remaining: 8948
Starting to write CD/DVD/BD at speed 10 in real SAO mode for single session.
Last chance to quit, starting real write    0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
BURN-Free is OFF.
Performing OPC...
Sending CUE sheet...
cdrecord: WARNING: Drive returns wrong startsec (0) using -150
Writing pregap for track 1 at -150
Starting new track at sector: 0
Track 01:  685 of  685 MB written (fifo 100%) [buf 100%]  10.6x.
Track 01: Total bytes read/written: 718643200/718643200 (350900 sectors).
Writing  time:  488.301s
Average write speed   9.6x.
Min drive buffer fill was 100%
Fixating...
Fixating time:   24.928s
cdrecord: fifo had 11320 puts and 11320 gets.
cdrecord: fifo was 0 times empty and 11225 times full, min fill was 85%.

real    8m44.246s
user    0m0.246s
sys     0m2.478s