Re: How to recover data from a defective CDROM

On Thursday 21 May 2009, Jonathan Ryshpan wrote:
On Wed, 2009-05-20 at 22:28 -0400, Gene Heskett wrote:
On Wednesday 20 May 2009, Jonathan Ryshpan wrote:
My computer is no longer able to read a CDROM with some fairly valuable
data. I have been able to read this CDROM successfully in the past.
...
An attempt to get some data using cat fails:
# cat /dev/sr0
cat: /dev/sr0: Input/output error

Can this drive still read other cd's? Also, if the cd really is
scratched, there are treatments to restore them at your local Wally World
I believe. In a one time pinch, you could use a century old darkroom
technique we used for scratched negatives since long before my time, rub a
bit of the grease from the side of your nose into the scratch.

But I'd almost bet a new drive would read it as it is.

The drive does read other CDs without trouble. It's almost new; I
bought the system in March. Two other systems, both old but reliable
won't read the CD either. The CD has no visible scratches; a little
grease didn't help.

Thanks - jon

How old is the CD, and is it pressed or burnt? There are stories going around
that even pressed ones have a short lifetime. I lost one of my later Johnny
Cash disks a year ago. Looking at it, it looks like it was never recorded,
its all gone.

--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
The NRA is offering FREE Associate memberships to anyone who wants them.
<https://www.nrahq.org/nrabonus/accept-membership.asp>

Better late than never.
-- Titus Livius (Livy)

--
fedora-list mailing list
fedora-list@xxxxxxxxxx
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines

Relevant Pages

  • Re: How to recover data from a defective CDROM
    ... An attempt to get some data using cat fails: ... a one time pinch, you could use a century old darkroom technique we used for ... the side of your nose into the scratch. ... grease didn't help. ...
    (Fedora)
  • Re: How to recover data from a defective CDROM
    ... device sr0, logical block 3 ... An attempt to get some data using cat fails: ... a one time pinch, you could use a century old darkroom technique we used for ... the side of your nose into the scratch. ...
    (Fedora)