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Date:      Sun, 25 Apr 1999 00:55:05 -0700 (PDT)
From:      Mike Meyer <mwm@phone.net>
To:        stable@freebsd.org
Subject:   Problems with CD drive...
Message-ID:  <Pine.BSF.4.05.9904250046520.16706-100000@guru.phone.net>

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For some reason, my 3.1-STABLE system stopped being able to burn
usable CDRs recently. I've tried a number of gyrations to get this
fixed, all to no avail.

I'm running a build of source I fetched from CVS on the 24th. I
installed the version of cdrecord that was included in the ports tree
supped at the same time. This is a SCSI CDR drive; cdrecord says:

Cdrecord release 1.8a20 Copyright (C) 1995-1999 Jörg Schilling
scsidev: '1,5,0'
scsibus: 1 target: 5 lun: 0
Device type    : Removable CD-ROM
Version        : 2
Response Format: 2
Capabilities   : 
Vendor_info    : 'YAMAHA  '
Identifikation : 'CRW4260         '
Revision       : '1.0g'
Device seems to be: Generic mmc CD-RW.
Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
Driver flags   : SWABAUDIO

Mounting the cdrom images (via vn) and comparing those to the source
works like a charm. Buring a CD-RW from that image and testing that
works like a charm. Burning a CD-R apparently works, but when I try
mounting and reading data from it, I get:

Apr 25 00:29:37 guru /kernel: cd9660: RockRidge Extension
(cd0:ahc1:0:5:0): READ(10). CDB: 28 0 0 0 19 bb 0 0 1e 0 
(cd0:ahc1:0:5:0): MEDIUM ERROR info?:19d6 asc:2,0
(cd0:ahc1:0:5:0): No seek complete
(cd0:ahc1:0:5:0): cddone: got error 0x5 back
(cd0:ahc1:0:5:0): READ(10). CDB: 28 0 0 0 1a 35 0 0 1e 0 
(cd0:ahc1:0:5:0): MEDIUM ERROR info?:1a45 asc:2,0
(cd0:ahc1:0:5:0): No seek complete
(cd0:ahc1:0:5:0): cddone: got error 0x5 back
(cd0:ahc1:0:5:0): READ(10). CDB: 28 0 0 0 1a ed 0 0 1e 0 
(cd0:ahc1:0:5:0): MEDIUM ERROR info?:1aef asc:2,0
(cd0:ahc1:0:5:0): No seek complete
(cd0:ahc1:0:5:0): cddone: got error 0x5 back
(cd0:ahc1:0:5:0): READ(10). CDB: 28 0 0 0 1a f0 0 0 1f 0 
(cd0:ahc1:0:5:0): MEDIUM ERROR info?:1af0 asc:2,0
(cd0:ahc1:0:5:0): No seek complete
(cd0:ahc1:0:5:0): cddone: got error 0x5 back
(cd0:ahc1:0:5:0): READ(10). CDB: 28 0 0 0 1a f0 0 0 4 0 
(cd0:ahc1:0:5:0): MEDIUM ERROR info?:1af0 asc:2,0
(cd0:ahc1:0:5:0): No seek complete
(cd0:ahc1:0:5:0): cddone: got error 0x5 back

(or similar). Same kind of thing when comparing the bits on the raw
device with the image I burned the thing from. I get the same results
using the CD-ROM drive on the machine.

I'd suspect hardware errors, but then why does it work with CD-RW and
not CD-R?

Any help would be *greatly* appreciated!

	Thanx,
	<mike



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