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

[earljviolet at deserthowler.com]

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
>
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-- 
If you play a Windows install CD backwards it has satanic verses.