Burning cd's

["Sridhar M.A." <mas@uomphysics.net>]

I am currently checking out Samsung rewritable cd drive(CD-RW248) under
Linux. These are the steps that I followed:

   o    Using mkisofs I created an iso file. 
           mkisofs -r -o dasa1.img xyz/

   o    Checked the iso file by mounting it as
          mount dasa1.img /mnt -o loop

   o    No error messages were received either during the creation
        of the iso image or mounting the image

   o    Tried burning the iso image on to a cd using the following
        command

        mas@brahman:~/tmp$ cdrecord -dev=0,0,0 -speed=10 -dummy dasa1.img
        Cdrecord 2.01a10 (i686-pc-linux-gnu) Copyright (C) 1995-2003 Jörg Schilling
        scsidev: '0,0,0'
        scsibus: 0 target: 0 lun: 0
        Linux sg driver version: 3.1.24
        Using libscg version 'schily-0.7'
        Device type    : Removable CD-ROM
        Version        : 0
        Response Format: 1
        Vendor_info    : 'SAMSUNG '
        Identifikation : 'CD-R/RW SW-248F '
        Revision       : 'R604'
        Device seems to be: Generic mmc CD-RW.
        Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
        Driver flags   : MMC-3 SWABAUDIO BURNFREE FORCESPEED
        Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R96R
        Starting to write CD/DVD at speed 10 in dummy TAO mode for single session.
        Last chance to quit, starting dummy write    0 seconds. Operation starts.
        cdrecord: Input/output error. write_g1: scsi sendcmd: no error
        CDB:  2A 00 00 03 B2 1B 00 00 1F 00
        status: 0x2 (CHECK CONDITION)
        Sense Bytes: F0 00 03 00 03 AF 87 0C 00 00 00 00 0C 00 00 00
        Sense Key: 0x3 Medium Error, Segment 0
        Sense Code: 0x0C Qual 0x00 (write error) Fru 0x0
        Sense flags: Blk 241543 (valid)
        cmd finished after 0.787s timeout 40s
        write track data: error after 496031744 bytes
        cdrecord: Input/output error. flush cache: scsi sendcmd: no error
        CDB:  35 00 00 00 00 00 00 00 00 00
        status: 0x2 (CHECK CONDITION)
        Sense Bytes: F0 00 03 00 03 AF 87 0C 00 00 00 00 0C 00 00 00
        Sense Key: 0x3 Medium Error, Segment 0
        Sense Code: 0x0C Qual 0x00 (write error) Fru 0x0
        Sense flags: Blk 241543 (valid)
        cmd finished after 6.410s timeout 120s
        Trouble flushing the cache

Does this indicate a medium error or a drive error? By the look of it,
appears to be that of the medium. Should I return the drive or change
media? The media I used is Samsung and the quality is as given below:

      @brahman:~/tmp$ cdrecord dev=0,0,0 -atip
      Cdrecord 2.01a10 (i686-pc-linux-gnu) Copyright (C) 1995-2003 Jörg Schilling
      scsidev: '0,0,0'
      scsibus: 0 target: 0 lun: 0
      Linux sg driver version: 3.1.24
      Using libscg version 'schily-0.7'
      Device type    : Removable CD-ROM
      Version        : 0
      Response Format: 1
      Vendor_info    : 'SAMSUNG '
      Identifikation : 'CD-R/RW SW-248F '
      Revision       : 'R604'
      Device seems to be: Generic mmc CD-RW.
      Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
      Driver flags   : MMC-3 SWABAUDIO BURNFREE FORCESPEED
      Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R96R
      ATIP info from disk:
        Indicated writing power: 5
        Is not unrestricted
        Is not erasable
        Disk sub type: Medium Type B, low Beta category (B-) (4)
        ATIP start of lead in:  -11607 (97:27/18)
        ATIP start of lead out: 359849 (79:59/74)
      Disk type:    Short strategy type (Phthalocyanine or similar)
      Manuf. index: 18
      Manufacturer: Plasmon Data systems Ltd.

Regards,

-- 
Sridhar M.A.

This process can check if this value is zero, and if it is, it does
something child-like.
		-- Forbes Burkowski, CS 454, University of Washington