[Bug 1896804] Re: CD/DVD drive detected as read only, command line and GUI programs

[Thomas Schmitt]

Hi,

well, at least we got over the strange error code.

> libburn : SORRY : Timeout exceed (30000 ms). Retry canceled.
> libburn : SORRY : Command: READ DISC INFORMATION #63,[2 04 00] : 51 00
> 00 00 00 00 00 00 22 00  : dxfer_len= 34

The command READ DISC INFORMATION was retried 63 times. The last failure
was because of a timeout of 30 seconds.
The failed command does not cause much effort in the drive. It is just an
inquiry about the overall state of the loaded medium. Normally it is done
within less than a millisecond.

The drive seems to have announced that there is a medium loaded.
Else libburn would not have had interest in the medium state.

As it seems now, this drive is quite unusable. See below for a deeper
inspection of what is going on between it and libburn.

> Drive type   : vendor 'HL-DT-ST' product 'DVDRAM GH20NS10' revision
'EL00'

Googling "GH20NS10" "EL00" shows that this drive is around since 2007.
How old is yours ? When was last it was re-cabled or moved to another box ?

Do you have an opportunity to test it with MS-Windows without touching the
hardware ? It would be quite astonishing if it worked right now with the
same medium loaded as with your above xorriso run.

--------------------------------------------------------------------------

Let's break out the big gear and add command -scsi_log "on" to the xorriso
run. Because the output on standard error channel will be very verbous,
we catch it in a file in /tmp while still showing it on terminal:

  ./xorriso/xorriso -scsi_log on -outdev /dev/sr0 -toc 2>&1 \
  | tee -i /tmp/xorriso.log

(I write this as two lines with a "\" at the end of the first, because the
 bug tracker breaks up oversized lines. You may write it in one line without
 that "\":

  ./xorriso/xorriso -scsi_log on -outdev /dev/sr0 -toc 2>&1 | tee -i
/tmp/xorriso.log

)

This will log the SCSI commands and their replies as they go forth and back
between libburn and the drive.
Add the emerging file
  /tmp/xorriso.log
as attachment to your next comment.

If the attachment is rejected for any reason, send the file to
  scdbackup at gmx.net
as mail body or as attachment.

It will be interesting to see all error replies and the timing of command
execution.

--------------------------------------------------------------------------

Have a nice day :)

Thomas

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Title:
  CD/DVD drive detected as read only, command line and GUI programs

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