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Date:      Thu, 4 Oct 2001 20:54:20 -0700 (PDT)
From:      Ed Alley <alley1@llnl.gov>
To:        guy.lateur@pandora.be
Cc:        freebsd-questions@freebsd.org
Subject:   Re: burncd - Input/output error while fixating
Message-ID:  <200110050354.f953sKH00434@jordan.llnl.gov>

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On Fri, Oct 05 2001 guy lateur <guy.lateur@pandora.be> wrote:

> However, I still get this message at the beginning of fixate:

> # Oct  4 23:12:36 guytje /kernel: acd1: PREVENT_ALLOW - ILLEGAL REQUEST
> asc=64 ascq=00 error=04

> As it doesn't seem to do any harm, I can probably just forget about it,
> right?

I am running an HP cd-writer 9500 series. Under FreeBSD-4.3 I
would get a funny read error before it began to burn the
first file. However, after the CDRW completed, the disk was perfectly
fine. Under FreeBSD-4.4 I get no error messages. :->

The ATAPI driver is constantly begin upgraded as more hardware
comes on the market. In addition, the ATAPI protocol is being
upgraded. If your CDRW worked cleanly under an earlier release
of FreeBSD but is now spitting out error messages, then
perhaps something has gone wrong.

There is a useful web page that you can consult; it
contains a list of the latest ATAPI CD-R/W drives
that work under FreeBSD CURRENT along with problems.
	http://freebsd.dk/ata

The web page is put out by Soren Schmidt who maintains
the ATA and ATAPI drivers for FreeBSD. If the web page
indicates that your drive should be fine, then an
e-mail to him might be in order.

			Ed

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