[Pkg-libburnia-devel] BR-RE blank disk - Pioneer BDR-2208 - initial format fails

[Thomas Schmitt]

Hi,

> I've Googled about this and found some comments about the variable
> quality of BD-RE media,

The only one that ever failed on me out of the box was the
one that came with my first BD burner (LG GGW-H20L).
To my luck i had purchased some others.

> The brand name on these disks is "Color Research"

Your inspection yielded:

> Product Id:    CMCMAGCN/CN2/0
> Producer:      CMC Magnetics Corporation

That's the same as you nowadays get from Verbatim.
Not necessarily bad. Shrug.

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My next test proposal is

   cdrskin -V -v dev=/dev/sr0 blank=format_defectmgt_cert_off -eject |  tee -i
/tmp/cdrskin_cert_off.log

(Catch the lengthy log again so we can verify that the sent
 FORMAT command really transmits 00 b4 74 00 c0 00 30 00 now.
 In case of success it will become even more lengthy by the
 program frequently asking about progress.)

Further do and report the outcome of:
  cdrskin -v dev=/dev/sr0 --list_formats

If this lists among others a format 00h after idx 0, like in:
  Format idx 0 : 00h , 11826176s , 23098.0 MiB
  Format idx 1 : 30h , 11826176s , 23098.0 MiB
  Format idx 2 : 30h , 11564032s , 22586.0 MiB
  Format idx 3 : 30h , 12088320s , 23610.0 MiB
and if the previous formatting attempt did fail, then try

  cdrskin -V -v dev=/dev/sr0 blank=format_by_index_0 -eject |  tee -i /tmp/cdrskin_00h.log


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Reasoning:

The failure happens here

  FORMAT UNIT
  04 11 00 00 00 00
  To drive: 12b
  00 82 00 08 00 b4 74 00 c2 00 30 00
  +++ sense data = 70 00 05 00 00 00 00 0E 00 00 00 00 26 00 00 89 00 08
  +++ key=5  asc=26h  ascq=00h   (     8 ms)

The drive accuses libburn to have sent a bad command:
  5 26 00 INVALID FIELD IN PARAMETER LIST

Offending is probably this format descriptor
  00 b4 74 00 c2 00 30 00
The drive reported by READ FORMAT CAPACITIES as available
  00 b4 74 00 c0 00 30 00
The only difference is about Defect Certification.

One may disable this examination of the medium by blank mode
"format_defectmgt_cert_off".

Another try is not to use BD-RE specific format type 30h, but
the general format type 00h (which should trigger 30h, actually).

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Have a nice day :)

Thomas