Re: CDROM Burners

[dempson@actrix.gen.nz (David Empson)]

Wayne Stewart <waynes@intergate.bc.ca> wrote:

> David Empson wrote:
>
> > An ISO disk is different: if multiple sessions are written, the computer
> > only mounts the last one.  Data in earlier sessions can be referenced
> > from the directory of later ones.
> 
> Again for the IIe we're back to the lack of software problem.

Not just a lack of software: the CD-ROM drive would have to support
multiple sessions to be able to handle this correctly.  Without this,
you'd only see the original ISO session, not anything that was written
(or changed) in a later session.

> > A ProDOS multi-partition CD is actually a single session, which contains
> > a partition table just like a hard drive.  These partitions can be
> > ProDOS and/or HFS, and the IIgs will happily mount all of them.  The
> > Mac's standard CD-ROM driver ignores all the ProDOS partitions, only
> > seeing the HFS ones (possibly only the first HFS partition).
> 
> Actually my Mac will see the first ProDOS partition in a single session
> ProDOS multi-partition CD with the stock Apple CD reader.

I assume you mean a CD which has _only_ ProDOS partitions?  My System 6
Golden Master has both ProDOS and HFS partitions, and the standard Mac
driver has never mounted the ProDOS ones.

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P O Box 27-103, Wellington, New Zealand