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SubjectRe: [Cdrecord-support] OPC area usage [RE: ide cd-recording not working in 2.4.18-rc2-ac1 (fwd)]

>From: Wojtek Pilorz <wpilorz@bdk.pl>

>I am forwarding a message from linux-kernel mailing list;
>As far as I understand message from Tony Lee from Nokia,
>he says that you can not perform more then 10 calibrations on a CD-R
>media, and that to overcome that limitation some software (e.g. Easy CD
>Creator) stores information about media already calibrated on given
>drive in a database, so that when media is reused on that system, it is
>not calibrated again.

In many cases, it makes sense to _read_ the error message before commenting it.

The message is _not_ related to OPC!

>Would anyone care to comment whether this is true?
>If so, my undersanding is that it would be not possible to create more
>than 10 sessions on a CD-R media with cdrecord, which (as far as I
>understand) do not use such database. Is that correct?

You can do up to 99 OPC calls to a single media.


>> ---------- Forwarded message ----------
>> Date: Thu, 21 Feb 2002 12:23:43 -0800
>> From: Tony.P.Lee@nokia.com
>> To: ed.sweetman@wmich.edu, alan@lxorguk.ukuu.org.uk
>> Cc: linux-kernel@vger.kernel.org
>> Subject: RE: ide cd-recording not working in 2.4.18-rc2-ac1
>>
>> > > > I get this on every cd I try and I've tried more than I'd
>> > have liked to.
>> > > >
>> > > > Performing OPC...
>> > > >
>> > > /usr/bin/cdrecord: Input/output error. write_g1: scsi
>> > sendcmd: no error
>> > > > CDB: 2A 00 00 00 00 1F 00 00 1F 00
>> > > > status: 0x2 (CHECK CONDITION)
>> > > > Sense Bytes: 70 00 05 00 00 00 00 0A 00 00 00 00 21 00 00 00
>> > > > Sense Key: 0x5 Illegal Request, Segment 0
>> > > > Sense Code: 0x21 Qual 0x00 (logical block address out of
>> > range) Fru 0x0
>> > >
>> > > Thats saying that cdrecord sent the drive a bogus command.

The person who made the statement on the line above seems to lack any
basic knowlede....

Obviously a buffer underrun.

Possible reasons:

- Bad configuration (IDE cabling)

- in this case it may help to read README.ATAPI

- Bad configuration (SCSI setup)

- In this case check cabling/termination and make sure
all devices to disconnect/reconnect.

- A kernel bug.

- Ask for help from the Kernel crew.

Jörg

EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
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schilling@fokus.gmd.de (work) chars I am J"org Schilling
URL: http://www.fokus.gmd.de/usr/schilling ftp://ftp.fokus.gmd.de/pub/unix
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