[Info-vax] InfoServer 150

[Bob Wilson]

On Sunday, January 27, 2019 at 11:31:01 AM UTC-5, Scott Dorsey wrote:
> Bob Wilson  <bwandmw at gmail.com> wrote:
> >
> >John, could you please give me a pointer to the "official" (whatever that m=
> >eans) definition of "ISO image".
> 
> It is the ISO-9660:1988 "Yellow book" which sets forth the standard filesystem
> format for CD-ROMs.  You can order a physical copy from the ISO for a lot of
> money if you really need the official standard.
> --scott
> 
> -- 
> "C'est un Nagra. C'est suisse, et tres, tres precis."

Thanks for the pointer...I was interested in whether the term "ISO image" has a specific definition as defined by a standards document.

I have enough paper documentation that I don't look at so I'm not inclined to spend the $'s just too see if that particular term is defined in that particular standard. If anyone has a copy and wants to look it up (please do! :-))...

In any case, I think, as Steve H said "that terminology ship has sailed".

Whatever actions any given program takes when a file has a .ISO file type is not predictable, and it's not predictable whether a file with a file type of .ISO contains a ISO-9660 file system or a raw-disk-image--it's wishful thinking that restricting files with .ISO file types to a ISO-9660 file system is ever going to happen.

Just to beat a dead horse some more...a VMS LD container file (file type .DSK) can be ftp/scp'd to a Mac or Windows system, renamed with a .ISO file type and burned as a disk-image-to-disc (to be usable the size of the .DSK file, in VMS disk blocks, needs to be in divisible by 4) [using a program that knows how to deal with non-ISO9660 .ISO files].

fwiw,
bw