🚀 go-pugleaf

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 
________________________________________________________________________
Yves                                                       46�23'35.6" N
Cap-De-La-Madeleine                                        72�33'20.9" O
Quebec, Canada                                             Ele 57m WGS84

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

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