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Date: Wed, 25 Feb 2004 12:15:56 +0100
From: Marc Fonvieille <blackend@freebsd.org>
To: Dev Tugnait <dev@unixdaemon.org>
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Subject: Re: TDK DVD Burner
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On Wed, Feb 25, 2004 at 05:35:38AM -0500, Dev Tugnait wrote:
> Yes I have those options in my kernel, and i am root.
> 
> dvd+rw-mediainfo /dev/cd0
> /dev/cd0: unable to open: Device not configured
>

I assume you cannot mount a vanilla CD as well.
It seems it could be either a devfs issue (check /etc/devfs.conf and man
devfs(8)) or an ATAPI/CAM problem.  You should upgrade your system and
redo the tests with a fresh -CURRENT.

Good luck,

Marc