Re: dvd+rw-tools multisession recording fails after a few sessions
Thomas Schmitt wrote:
I think that describes the problem, each session needs to calibrate, and
the media ran out of room to do more. That's my read on this, I've done
15 or so sessions, but 95 is rather a lot. Considering that Farshad
identified the media as DVD-R and he only has 95 sessions on it, a full
DVD would have been 700-800 sessions. I think that's outside the
expected usage profile. ;-)
i would say the media is worn off by too many
It [growisofs within script] works fine for a few
sessions and it then fails to write.
This is the output of the mediainfo:
READ DISC INFORMATION:
Disc status: appendable
Number of Sessions: 95
State of Last Session: empty
"Next" Track: 95
Number of Tracks: 95
95 sessions is not "a few".
Rather "quite a bunch".
Is 95 a realistic count ? Did you do as many ?
Sep 3 00:14:49 kernel: SCSI cdrom error : host 1 channel 0 id 0 lun 0
return code = 8000002
Sep 3 00:14:49 kernel: Current sd0b:01: sns = 70 4
Sep 3 00:14:49 kernel: ASC=3e ASCQ= 2
Sep 3 00:14:49 kernel: Raw sense data:0x70 0x00 0x04 0x00 0x00 0x00 0x00
0x0a 0x00 0x00 0x00 0x00 0x3e 0x02 0x00 0x00 0x00 0x00
Sep 3 00:14:49 kernel: I/O error: dev 0b:01, sector 64
Sep 3 00:14:50 rlc: writeTocd: error Interrupted system call
4 3E 02 is SCSI error TIMEOUT ON LOGICAL UNIT
Sep 3 00:14:56 kernel: sr1: CDROM (ioctl) error, command: 0x54 01 00 00 00
00 00 00 00 00
Sep 3 00:14:56 kernel: Current sr00:00: sns = 70 3
Sep 3 00:14:56 kernel: ASC=73 ASCQ= 2
Sep 3 00:14:56 kernel: Raw sense data:0x70 0x00 0x03 0x00 0x00 0x00 0x00
0x0a 0x00 0x00 0x00 0x00 0x73 0x02 0x00 0x00 0x00 0x00
0x54 is MMC command SEND OPC INFORMATION.
This is a typical preparation command for writes.
3 73 02 is SCSI error POWER CALIBRATION AREA IS FULL
Hopefully not, at least anyone who was able to decode the status return.
Too many sessions to calibrate is not likely to be helped by going to
growisofs 5.21 and mkisofs 2.0 are old, indeed.
But i would not blame an OPC error on them.
This sounds like a good place for a USB flash adapter and flash card,
nicely non-volatile, easily supports a dataset per subdirectory, and
able to handle the data volume. When full to ~1GB, then copy to DVD
sessions if needed. This really sounds like just use of inappropriate
This seems rather ito be a question of drive and media
compatibility resp. quality.
bill davidsen <firstname.lastname@example.org>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979