In article <u5GSb.23607$eY2.5540@fe2.texas.rr.com>,
Logan Shaw <lshaw-usenet@austin.rr.com> wrote:

>> You could try to run:
>>
>> cdrecord dev=0,0,0 -fix
>>
>> If the CD contains a valid PMA (written by the audio writer) and the
>> CD-R drive in the computer understands the content, this should
>> work.
>
>Hmm, well that was a promising idea, but it didn't do the trick.
>The CD seems to be marked as if it's blank. (I guess that
>means that PMA indicates it's blank.) Here's the relevant info
>from cdrecord's output:

The output below may have two reasons:

- the medium does not have a valid PMA

- The writer does not support to fixate disks that only have a PMA



> cdrecord: Input/output error. close track/session: scsi sendcmd: no error
> CDB: 5B 00 02 00 00 00 00 00 00 00
> status: 0x2 (CHECK CONDITION)
> Sense Bytes: 70 00 05 00 00 00 00 0A 00 00 00 00 2C 04 00 00
> Sense Key: 0x5 Illegal Request, Segment 0
> Sense Code: 0x2C Qual 0x04 (current program area is empty) Fru 0x0
> Sense flags: Blk 0 (not valid)
> cmd finished after 0.000s timeout 480s

You could check if this is a writer problem by e.g. using a blank CD-RW
and call

cdrecord dev=0,0,0 -nofix /etc/goup
cdrecord dev=0,0,0 -fix

If this works, then it's most likely a missing PMA.


>Any other ideas? I'm still thinking the best thing would be to just
>issue commands to read, regardless of what the drive thinks is
>there. Sort of like reading blocks from a disk once your filesystem
>structure is trashed. Of course, I'm not sure whether a CD-ROM drive
>will support this or whether its firmware makes it read the TOC
>first or something...

What happens if you call readcd -c2scan?

readcd has a hook that allows you to enter the medium size manually
if there is no valid TOC.

You may need to use the interactive mode.....

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