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Groups > comp.os.linux.hardware > #2618

Re: DVD Drive not recognized after installing OS

From Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid>
Newsgroups comp.os.linux.hardware
Subject Re: DVD Drive not recognized after installing OS
Date 2014-12-10 16:26 +0000
Message-ID <cerai5Fj6gkU1@mid.individual.net> (permalink)
References (4 earlier) <20141209141748.7647c0ce@johnnyspc.johnnyspc.net> <m67lr001fun@news6.newsguy.com> <20141209145240.5e66be3c@johnnyspc.johnnyspc.net> <m68jmh$sds$1@omega-3a.local> <20141210094810.36de01b5@johnnyspc.johnnyspc.net>

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On 2014-12-10, Johnny <johnny@invalid.net> wrote:
> On Tue, 09 Dec 2014 22:54:41 -0600
> Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> wrote:
>
>> On 12/09/2014 02:52 PM, Johnny wrote:
>> > I sure didn't think that other CD was bad.  I have had it for
>> > several years, but have always kept in a plastic case.
>> 
>> Writeable CDs/DVDs can go bad over time, especially if there was the
>> slightest bit of dust on the surface when they were written.  The
>> drives are quite tolerant of dust when reading. The dust particle
>> affects just a tiny area, and the ECC can recover the data. When
>> writing, that same dust mote disperses the write beam so that it
>> damages a far larger area, making anything recorded in that region
>> marginal. Add a little time-related degradation, and you've lost
>> more bits than the ECC can handle. I've looked at some failed CDs
>> under a microscope and could see the discolored spots, many with
>> the dust particle that caused them still there in the center of
>> the spot.
>> 
>
> I think I have a different problem.  I just got this refurbished HP
> computer, and it came with Windows 7 Professional installed.
>
> The problem is with Wheezy.  Windows 7 can read all the CDs and DVDs
> that Wheezy can't read.  I just used Windows 7 to copy one of those
> DVDs and burn the files to a New DVD, and Wheezy can now see it.
>
> Maybe I don't have the right program installed to access those DVDs, or
> maybe I don't have the right driver.  I just don't know

Running below in term:
sudo dpkg -l |grep dvd

do you have installed?:
libdvdread 
libdvdnav
libdvdcss

In your source.lst (debian.list or whatever list file
in /etc/apt/sources.list.d) 
do you have below similar stanzas? in proper list file?: 

## Multimmedia
deb http://www.deb-multimedia.org wheezy main non-free
deb ftp://ftp.deb-multimedia.org wheezy main non-free

## Multimedia Sources
deb-src http://www.deb-multimedia.org wheezy main
deb-src ftp://ftp.deb-multimedia.org wheezy main

Running in term:
ls -al /dev | grep sr[0,1,2,3]

Are there links as below, pointing to the sr(X) device(s)?:
Like so:
lrwxrwxrwx   1 root root             3 Dec  8 13:46 cdrom -> sr0
lrwxrwxrwx   1 root root             3 Dec  8 13:46 cdrw -> sr0
lrwxrwxrwx   1 root root             3 Dec  8 13:46 dvd -> sr0
brw-rw----+  1 root cdrom      11,   0 Dec  8 13:46 sr0

I can not remember if wheezy is still using the older udev
where a file is created along this path:
/etc/udev/rules.d/70-persistent-cd.rules
open the file and look to see if your device is listed properly.

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Thread

DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-09 12:44 -0600
  Re: DVD Drive not recognized after installing OS Markus Heinz <markus.heinz@uni-dortmund.de> - 2014-12-09 19:57 +0100
    Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-09 13:19 -0600
      Re: DVD Drive not recognized after installing OS Markus Heinz <markus.heinz@uni-dortmund.de> - 2014-12-09 20:51 +0100
        Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-09 14:17 -0600
          Re: DVD Drive not recognized after installing OS Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2014-12-09 20:25 +0000
            Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-09 14:52 -0600
              Re: DVD Drive not recognized after installing OS Robert Nichols <SEE_SIGNATURE@localhost.localdomain.invalid> - 2014-12-09 22:54 -0600
                Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 09:48 -0600
                Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 16:26 +0000
                Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 10:45 -0600
                Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 18:04 +0000
                Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:08 -0600
                Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 19:59 +0000
                Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:08 -0600
                Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 19:55 +0000
                Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:59 -0600
              Re: DVD Drive not recognized after installing OS Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2014-12-10 12:17 +0100
                Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 13:33 +0000
                Re: DVD Drive not recognized after installing OS Michael Black <et472@ncf.ca> - 2014-12-10 13:33 -0500
      Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 18:09 +0000
        Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:13 -0600
          Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:37 -0600
            Re: DVD Drive not recognized after installing OS Aragorn <thorongil@telenet.be.invalid> - 2014-12-10 20:46 +0100
              Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 13:53 -0600
          Re: DVD Drive not recognized after installing OS Kirk_Von_Rockstein <Kirk_Von_Rockstein@nowhere.invalid> - 2014-12-10 20:30 +0000
            Re: DVD Drive not recognized after installing OS Johnny <johnny@invalid.net> - 2014-12-10 14:42 -0600
            Re: DVD Drive not recognized after installing OS Johnny <johnny @invalid.net> - 2014-12-11 06:24 -0600
              Re: DVD Drive not recognized after installing OS Aragorn <thorongil@telenet.be.invalid> - 2014-12-11 15:18 +0100
                Re: DVD Drive not recognized after installing OS Johnny <johnny @invalid.net> - 2014-12-11 08:56 -0600

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