Mick <michaelkintz...@gmail.com> wrote:
> scsibus2:
> 2,0,0 200) 'PIONEER ' 'BD-RW BDR-209D' '1.10' Removable CD-ROM
> 2,1,0 201) *
> 2,2,0 202) *
> 2,3,0 203) *
> 2,4,0 204) *
> 2,5,0 205) *
> 2,6,0 206) *
> 2,7,0 207) *
Pioneer is a good manufacturer...
> Running 'readcd f=cd_test.out -noerror' gives me an ever increasing number of
> errors, on each sector (currently up to sector 6 and still going strong):
>
> # readcd f=cd_test.out -noerror
> No target specified, trying to find one...
> Using dev=2,0,0.
> Read speed: 22160 kB/s (CD 125x, DVD 16x, BD 4x).
> Write speed: 22160 kB/s (CD 125x, DVD 16x, BD 4x).
> Capacity: 250000 Blocks = 500000 kBytes = 488 MBytes = 512 prMB
> Sectorsize: 2048 Bytes
> Copy from SCSI (2,0,0) disk to file 'cd_test.out'
> end: 250000
> readcd: Input/output error. read_g1: scsi sendcmd: no error
> CDB: 28 00 00 00 00 00 00 00 40 00
> status: 0x2 (CHECK CONDITION)
> Sense Bytes: F0 00 03 00 00 00 00 0E 00 00 00 00 11 05 00 00
> Sense Key: 0x3 Medium Error, Segment 0
> Sense Code: 0x11 Qual 0x05 (l-ec uncorrectable error) Fru 0x0
> Sense flags: Blk 0 (valid)
> cmd finished after 7.030s timeout 40s
This is an error at the layer above the audio sector. You may try to use:
cdrecord -noerror -edc-corr
and see whether readcd is able to do better corrections than the drive.
> readcd: Input/output error. Cannot read source disk
> readcd: Retrying from sector 0.
> .~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-
> ~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~
> readcd: Input/output error. Error on sector 0 not corrected. Total of 1
> errors.
> readcd: -noerror set, continuing ...
> .~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-
> ~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~
> readcd: Input/output error. Error on sector 1 not corrected. Total of 2
> errors.
> readcd: -noerror set, continuing ...
> .~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-
> ~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~
> readcd: Input/output error. Error on sector 2 not corrected. Total of 3
> errors.
> readcd: -noerror set, continuing ...
> .~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-
> ~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~
> [snip ...]
>
>
> There are no visible scratches on the disk, so I am thinking this is not a
> mechanical fault, but something to do with the burner. I am glad that I
> learned about readcd, but given the above results shall I give up hope and
> ask
> the guy to burn me a new CD using a different burner this time?
It may be that the firmware did not understand the media and used a wrong laser
calibration for writing.
I recommend to use Verbatim media if you like to do archiving.
Note that piles of 50+ CDs may have worse media than thos up to 25 per package.
You can check this with cdrecord -v -atip
verbatim e.g. sells cheap media from Moser Baer India (MBI) but still with
better quality than MBI labelled media. Better verbatim media identify as
Verbatim (DVDs and BluRays may use IDs from the business group).
Jörg
--
EMail:jo...@schily.net (home) Jörg Schilling D-13353 Berlin
joerg.schill...@fokus.fraunhofer.de (work) Blog:
http://schily.blogspot.com/
URL: http://cdrecord.org/private/
http://sourceforge.net/projects/schilytools/files/'
