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Old 12-28-2007, 02:55 AM
Robert Moskowitz
Default MOre on buring ISOs

So right now I have installed k3b on this notebook. I am using my Storix
DVD/CDRW usb drive. I can read cds with it.

Cannot burn CDs. First k3b suggests slowing down (from 8x to 4x). Then
use TAO. Then it gave up.

So I try cdrecord directly. -checkdrive finds some interesting things.
Got to close the drive manually; cdrecord says it can't. then try a
cdrecord -v dev=dev/scd0 sample.iso and if fails:

cdrecord: No write mode specified.
cdrecord: Asuming -tao mode.
cdrecord: Future versions of cdrecord may have different drive dependent

cdrecord: Continuing in 5 seconds...
Cdrecord-Clone 2.01 (cpu-pc-linux-gnu) Copyright (C) 1995-2004 J?rg

Note: This version is an unofficial (modified) version with DVD support
Note: and therefore may have bugs that are not present in the original.
Note: Please send bug reports or support requests to
Note: The author of cdrecord should not be bothered with problems in
this version.

TOC Type: 1 = CD-ROM
cdrecord: Cannot allocate memory. WARNING: Cannot do mlockall(2).
cdrecord: WARNING: This causes a high risk for buffer underruns.
cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler
cdrecord: Permission denied. WARNING: Cannot set priority using

cdrecord: WARNING: This causes a high risk for buffer underruns.
scsidev: '/dev/scd0'
devname: '/dev/scd0'
scsibus: -2 target: -2 lun: -2
Linux sg driver version: 3.5.27
Using libscg version 'schily-0.8'.
cdrecord: Warning: using inofficial libscg transport code version
(schily - Red Hat-scsi-linux-sg.c-1.83-RH '@(#)scsi-linux-sg.c 1.83
04/05/20 Copyright 1997 J. Schilling').

SCSI buffer size: 64512
atapi: 1
Device type : Removable CD-ROM
Version : 0
Response Format: 2
Capabilities :
Vendor_info : 'SAMSUNG '
Identifikation : 'CDRW/DVD SN-308B'
Revision : 'U006'
Device seems to be: Generic mmc2 DVD-ROM.
Current: 0x0009
Profile: 0x0008
Profile: 0x0009
Profile: 0x000A
Profile: 0x0010
Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Drive buf size : 1353728 = 1322 KB
FIFO size : 4194304 = 4096 KB
Track 01: data 48 MB
Total size: 55 MB (05:32.48) = 24936 sectors
Lout start: 56 MB (05:34/36) = 24936 sectors
Current Secsize: 2048
cdrecord: Input/output error. read disk info: scsi sendcmd: cmd timeout
after 9.040 (240) s

CDB: 51 00 00 00 00 00 00 00 04 00
resid: 4
cmd finished after 9.040s timeout 240s
cdrecord: Cannot get disk type.


and in /var/log/messages

Dec 27 21:11:11 nc4010 kernel: cdrom: This disc doesn't have any tracks
I recognize!
Dec 27 21:11:11 nc4010 kernel: usb 3-3: reset high speed USB device
using ehci_hcd and address 21

So what of this?

These are Memorex 700Mb/80min CD-R disks. Bought them probably 4 years
ago. Got about 200 of them and down to about 30.

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