🚀 go-pugleaf

Chris wrote:
> 
> Yves Belle-Isle wrote:
> >
> > Marcel Verduyn wrote:
> > >
> > > (I am new to these newsgroups so apologize when message not in its place here)
> > >
> > > Hello,
> > >
> > > I have a TEAC CD-writer. How can I find out WHEN a CD was written ?
> > > The file attributes such as size and date are of course the same.
> > > But how can I find out WHEN the CD as a whole was written ?
> > > Hope my question is clear enough.
> > > Please reply directly to verduyn@tech.chem.ethz.ch (as well as to the news-
> > > group of course).
> > > Many thanks in advance,
> > > regards,
> > >
> > >  Marcel Verduyn
> >
> > If it was a ISO-9660 layout you built yourself then it is wrote in the
> > ISO-9660 header and program like CDR-Diagnosis can show it to you.
> > If it was a copy of another CD then it is impossible because it contains
> > the creation date of the original disk as stored in it's ISO-9660 header
> > ________________________________________________________________________
> It depends also on 3 things.  When the cd was made there are 3 choices
> for
> dating the disc. option in cd creator. 1. files original date  2. The
> date
> the disc was made  3.  Date you pick.
> So it depends on what choice the person picked when they made the disc.
> Chris

BUT there is other information in the ISO-9660 headers, such as
publisher name, creation data and expiration date. That's nothing
to have with the three option you saw in ECDC :)

Just an extract from CDR-Diagnosis for Powersoft PowerDesigner disK:

------------------------------------------------------------------------
  ISO-9660 data track
  Volume ID:               DA_SUITE.Lic
  System ID:
  Volume size:             121763
  Volume set size:         1
  Volume in set:           1
  Block size (bytes):      2048
  Path table size (bytes): 3350
  Path table (L):          25
  Optional path table (L): 0
  Path table (M):          20
  Optional path table (M): 0
  Root directory block:    30
  Volume Set:              DA_SUITE.Lic
  Publisher:
  Data preparer:
  Application:             PowerDesigner
  Copyright file:
  Abstract file:
  Bibliography file:
  Volume created:          97-05-21 14:12:43
  Volume modified:         97-05-21 14:12:43
  Volume expires:          07-05-19 14:12:43
  Volume effective:        97-05-21 14:12:43
  -------------------- Big-endian format fielfs --------------------
  Volume size:             121763
  Volume set size:         1
  Volume in set:           1
  Block size (bytes):      2048
  Path table size (bytes): 3350
  Root directory block:    30

------------------------------------------------------------------------

With ECDC you have access (R/W or RO) to some part of that header only.

To have complete description of ISO-9660 see:
http://www.y-adagio.com/public/standards/std_lst.htm

You will find here the full ISO-9660 standard.
________________________________________________________________________
Yves                                                       46�23'35.6" N
Cap-De-La-Madeleine                                        72�33'20.9" O
Quebec, Canada                                             Ele 57m WGS84