[Tfug] CDs: no medium found, DVDs work (sometimes)

[John Kiniston]

You shouldnt ever use canned air to clean a CD/DVD Drive, any dust inside
will get blown about and possibly damage the optics.

You can try something like
http://www.radioshack.com/product/index.jsp?productId=2361964 if
you think the drive is dirty tho I doubt the 'Cleans and demagnetizes with
its Thunderon Brush System for improved results' line as the disks are not
magnetic.

On Tue, Jun 29, 2010 at 8:19 AM, <earljviolet at deserthowler.com> wrote:

> It does sound strange them all going at the same time.
> You didn't say if this happens with different brands of media or not.
> Some of the old readers I've come across seem to have that problem, but
> that's mostly been with DVDs and rarely with CDs.  Cheap generic seem to
> be more cross hardware.
> I've also found canned air to be a healing touch on some DVCDs.
>
> Earl
>
> On Mon, June 28, 2010 2:40 pm, JD Rogers wrote:
> > Hi All,
> >
> > I think I may have even posted on this before, but I got inspired
> > today to try to fix this issue, and I'm stuck. I don't use cds that
> > much which is both good and bad, since I think this problem first
> > showed up sometime around 1 year ago with ubuntu 9.4 or maybe 9.10.
> >
> > I have three workstations: 2 with identical hardware, 1 with a
> > different MB/CPU, but with the same cdrom drive.
> >
> > I can rule out hardware for 2 reasons: all three systems consistently
> > fail to read CDs. DVD's seem to mount ok 'sometimes' - maybe 1/2-2/3
> > of the time.
> >
> > Symptoms:
> > insert disk, disk spins, drive light blinks, eventually nothing. No
> > messages in dmesg. If I use "lshw -c disk", I see 'status=busy' for a
> > while and then eventually 'status=nodisc'.
> >
> > When the data DVD fails to mount, the symptoms are the same, but it
> > clearly works sometimes, so the cables are fine, the disks I'm testing
> > with are all fine (checked in other computers).
> >
> > If I try to "cat /dev/sr0" with the disk in, it says "cat: /dev/sr0:
> > No medium found"
> >
> > ANY ideas on how to further debug this would be great.
> > Thanks,
> > JDR
> >
> > _______________________________________________
> > Tucson Free Unix Group - tfug at tfug.org
> > Subscription Options:
> > http://www.tfug.org/mailman/listinfo/tfug_tfug.org
> >
>
>
> --
> If you play a Windows install CD backwards it has satanic verses.
>
>
> _______________________________________________
> Tucson Free Unix Group - tfug at tfug.org
> Subscription Options:
> http://www.tfug.org/mailman/listinfo/tfug_tfug.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://tfug.org/pipermail/tfug_tfug.org/attachments/20100629/54e6b68e/attachment-0002.html>