Hp-ux B.11.23 cdrom mounting disk problem

[Asim_5]

i have 2 DVD cds(MCOE 11i v2) one is original and other is copied version.

whenever i mount the original cd it gives me error
mount:unrecognised file system

when i mount copied version cd
it successfully mount the DVDrom

why this happing??

[Ivan Krastev]

Possible bad media. Check the media for scrathes, damages.

regards,
ivan

[Asim_5]

its not bad its scratchless cd and working on other servers

[Asim_5]

can anyone help me in solving mount problem in server??????

[Steven Schweda]

> [...] one is original and other is copied
> version.

If you have two discs with the same data, and
you can't use one of them on only one system,
then I'd suspect the hardware on that system.

> can anyone help me in solving mount problem
> in server??????

Have you tried swapping the DVD drive?

> why this happing??

With almost no information, perhaps a psychic
could offer more help.

Is the "original" disc a factory-pressed disc
or a home-made DVD+/-R[W]? What is the copy?
How was the copy made? (On what?) Have you
checked the two discs to see if they really
are the same (on some system where you can
read both, of course)?