Andrew Libby on Thu, 3 Jun 1999 18:12:45 -0400 (EDT)


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Re: [Plug] Re: Simple Question...


I was searching through the source code earlier (prompted by your
post), and I found a few references.  I was not, however, able
to track them to something definate.  I started (probably as you
did) looking for serial number, sn, etc.  I did find a reference to
a 13 digit ASCII string called medium_catalog_number.  This is
at /usr/src/linux/include/linux/cdrom.h:152.  Now, I don't
know if this is in fact what you're looking for or not, but I 
went further.

I've sited something that says its called the Medium Catalog Number,
is that what you're looking for?

From: /usr/usr/linux/drivers/cdrom/cm206.c:1044

369     /* The following function is implemented, although very few audio
370      * discs give Universal Product Code information, which should just be
371      * the Medium Catalog Number on the box.  Note, that the way the code
372      * is written on the CD is /not/ uniform across all discs!
373      */
374             case CDROM_GET_MCN: {
375                     struct cdrom_mcn mcn;
376                     if (!(cdo->capability & CDC_MCN))
377                             return -EINVAL;
378                     if (!cdo->get_mcn(dev, &mcn)) {
379                             PUTARG(struct cdrom_mcn, mcn);
380                             return 0;
381                     }
382                     return -EINVAL;

This infor should be available via

ioctl(fd,CDROM_GET_MCN,snptr);

Andy

On Thu, Jun 03, 1999 at 04:57:12PM -0400, Tim Peeler wrote:
> 
> 
> On Thu, 3 Jun 1999, Andrew Libby wrote:
> 
> > What are we looking for here?  Are we looking for a serial number on 
> > the disk itself, or a sn of software on the disk (such as MS office?)
> > 
> > Andy
> > 
> > :wq!
> <snip>
> 
> I'm looking for the serial number on the disk itself.  I can't find
> any information as to how or where that would be stored on the cd.
> 
> 
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