[Libburn] Could you test this?

[Derek Foreman]

On Sat, 28 Aug 2004, Bryan Forbes wrote:

> How would I go about finding out if it has something burnt on it?  I
> think it does, but I'm not sure...  Thanks.

Just see if cdrecord can write to it.  If it's still writeable, it's a 
blank. :)

> On Sat, 2004-08-28 at 16:30 -0500, Derek Foreman wrote:
>> On Fri, 27 Aug 2004, Bryan Forbes wrote:
>>
>>> Here's the result of running cdrecord -toc dev=/dev/hdc on a burned cd
>>> using libburn to burn the iso:
>>>
>>> [?]
>>> [?]
>>> NOTE: this version of cdrecord is an inofficial (modified) release of
>>> cdrecord
>>>      and thus may have bugs that are not present in the original
>>> version.
>>>      Please send bug reports and support requests to
>>> <cdrtools at packages.debian.org>.
>>>      The original author should not be bothered with problems of this
>>> version.
>>>
>>> scsidev: '/dev/hdc'
>>> devname: '/dev/hdc'
>>> 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-0.8'.
>>> Device type    : Removable CD-ROM
>>> Version        : 0
>>> Response Format: 2
>>> Capabilities   :
>>> Vendor_info    : 'MATSHITA'
>>> Identifikation : 'CD-RW  CW-8123  '
>>> Revision       : 'CA0T'
>>> Device seems to be: Generic mmc2 DVD-ROM.
>>> Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
>>> Driver flags   : MMC-2 SWABAUDIO BURNFREE
>>> Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P
>>> RAW/R96R
>>> cdrecord: Success. read toc: scsi sendcmd: no error
>>> CDB:  43 00 00 00 00 00 00 00 04 00
>>> status: 0x2 (CHECK CONDITION)
>>> Sense Bytes: 70 00 05 00 00 00 00 0A 00 00 00 00 24 00 00 00
>>> Sense Key: 0x5 Illegal Request, Segment 0
>>> Sense Code: 0x24 Qual 0x00 (invalid field in cdb) Fru 0x0
>>> Sense flags: Blk 0 (not valid)
>>> resid: 4
>>> cmd finished after 0.000s timeout 40s
>>> cdrecord: Cannot read TOC header
>>> cdrecord: Cannot read TOC/PMA
>>>
>>> so it looks like I can't read the toc.
>>
>> Can you confirm that the disc actually does have crap burnt onto it?
>>
>> If that's the case, I think it's safe to assume that all the commands are
>> still fine, and I just have to do some byte swapping on the data.
>>
>> If the disc is still a blank, I need to byte swap the cdbs too.
> -- 
> ======================================================================
> Bryan Forbes
> bryan at reigndropsfall.net
> http://www.reigndropsfall.net
>
> "It does not take a majority to prevail, but rather an irate, tireless
> minority keen to set brush fires in people's minds."
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