Out of curiousity wouldn't 'dd' on UNIX,
or a the following on VMS work?
A hybrid disk has multiple sessions recorded on it. On the DEC disk, the
first session is a music track, and the second is a 9660 file system with
Windows gunk on it. The tarball has everything from the second session.
I tried making an ISO image, and it only saves the first session.
The content is fairly lame. Some blocky AVI's, and the DEC timeline with
low resolution images from the DEC archives, pretty much identical to the timeline that
was
on the DEC website. The whole thing is about 90mb.