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Date: Mon, 10 Sep 2007 08:41:03 +0200 (CEST)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Predrag Punosevac <punosevac@math.arizona.edu>
In-Reply-To: <46E47D1C.6060303@math.arizona.edu>
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References: <46E47D1C.6060303@math.arizona.edu>
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Cc: questions@freebsd.org
Subject: Re: DVD-RW drive 
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> I have a very strange problem with my DVD-RW drive. Namely the drive is for 
> some reason recognized as read only
>
> acd0: DVDR <LITE-ON DVDRW LH-18A1P/GL0C> at ata0-slave UDMA66

why readonly? it is recognized fine, like my DVD-RW
acd0: DVDR <Slimtype DVDRW SSM-85H5S/FS06> at ata1-master UDMA33


> # ATA and ATAPI devices
> device          ata
> device          atadisk         # ATA disk drives
> device          ataraid         # ATA RAID drives
> device          atapicd         # ATAPI CDROM drives
> device          atapifd         # ATAPI floppy drives
> device          atapist         # ATAPI tape drives

everything OK, just why atapist? do you have IDE streamer?
> I also edited my load.conf file with
>
> hw.ata.ata_dma="1"
> hw.ata.atapi_dma="1"
>
>
> I altered the permissions devfs.conf and fstab file so that I can read and 
> write but that is not even important since I can not
> write anything even from the command line
>
> I also get
>
> [pedja@ /usr/home/Pedja]$ dvd+rw-mediainfo /dev/acd0
> /dev/acd0: unable to open: Inappropriate ioctl for device

use cd0 only

> [pedja@ /usr/home/Pedja]$ dvd+rw-mediainfo /dev/cd0
> /dev/cd0: unable to open: Inappropriate ioctl for device

please

ls -l /dev/cd0
ls -l /dev/pass*