Making Coasters
 

I am trying to burn fedora core 5 disks using a fedora core4 system(1.8 ghz). So far I have made two good disks and 10 coasters. I started out using nautilus. The first and fourth disks were good, the second and third bad. All subsequent tries were bad. I have checked the SHA1SUM on disk 2, which is mostly what I have been trying to burn and is making all the coasters. On the last try, I used the following command from a terminal window:

cdrecord -v -tao -data speed=8 dev=/dev/hdc /home/live2/torr/bordeaux-binary-i386/FC-5-i386-disc2.iso

It gave the following output:

Cdrecord-Clone 2.01-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jörg Schilling
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 http://bugzilla.redhat.com/bugzilla
Note: The author of cdrecord should not be bothered with problems in this version.
TOC Type: 1 = CD-ROM
scsidev: '/dev/hdc'
devname: '/dev/hdc'
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 : 'TSSTcorp'
Identifikation : 'CDW/DVD TS-H492A'
Revision : 'HP03'
Device seems to be: Generic mmc2 DVD-ROM.
Current: 0x0009
Profile: 0x000A
Profile: 0x0009 (current)
Profile: 0x0008
Profile: 0x0010
Profile: 0x002B
Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
Driver flags : MMC-3 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Drive buf size : 1957120 = 1911 KB
FIFO size : 4194304 = 4096 KB
Track 01: data 668 MB
Total size: 767 MB (76:01.34) = 342101 sectors
Lout start: 767 MB (76:03/26) = 342101 sectors
Current Secsize: 2048
ATIP info from disk:
Indicated writing power: 5
Is not unrestricted
Is not erasable
Disk sub type: Medium Type A, high Beta category (A+) (3)
ATIP start of lead in: -11634 (97:26/66)
ATIP start of lead out: 359846 (79:59/71)
Disk type: Short strategy type (Phthalocyanine or similar)
Manuf. index: 3
Manufacturer: CMC Magnetics Corporation
Blocks total: 359846 Blocks current: 359846 Blocks remaining: 17745
Speed set to 1411 KB/s
Starting to write CD/DVD at speed 8.0 in real TAO mode for single session.
Last chance to quit, starting real write 0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
trackno=0
BURN-Free is OFF.
Performing OPC...
Starting new track at sector: 0
Track 01: 668 of 668 MB written (fifo 100%) [buf 100%] 8.4x.
Track 01: Total bytes read/written: 700618752/700618752 (342099 sectors).
Writing time: 577.462s
Average write speed 8.0x.
Min drive buffer fill was 100%
Fixating...
Fixating time: 33.022s
cdrecord: fifo had 11036 puts and 11036 gets.
cdrecord: fifo was 0 times empty and 10950 times full, min fill was 84%.


All I can think of to try now is buying a new cdrom drive. Is there anything else I can try first?

Thanks,
Mark

Btw, I also bought a brand new pack of cds towards the end of this procedure, which didn't seem to change anything.

I'm not sure how to configure the burning software integrated into nautilus, but GnomeBaker supports Burn-Free which is a feature that eliminates buffer under-runs (the cause of most coasters).