[Cialug] Where's the CD Device?

[Todd Walton]

On Wed, Feb 12, 2014 at 4:31 PM, Dave Weis
<WeisD at alliancetechnologies.net>wrote:

>
> There's no part of the file system that contains cdda files, it's an
> abstraction the desktop creates for you. It's possible to dd the image and
> make an on disk copy of the CD. That image can then be burned back to a CD.
>

That's what I thought, about the abstraction.  I would like for it to be
possible to dd the image.  That's what I'm aiming for.  But I can't do that
if I don't know where the device is.  dmesg makes it look like it's
/dev/sr0, however:

$ dd if=/dev/sr0 of=/home/todd/output.iso
dd: reading '/dev/sr0': Input/output error
0+0 records in
0+0 records out
0 bytes (0 B) copied, 0.00738223 s, 0.0 kB/s
$

--
Todd