Re: The Voice (from MUSE) uploaded to Asimov

[TommyGoog <ewerst@msn.com>]

On Saturday, July 21, 2012 11:55:22 PM UTC-5, Jerry wrote:
> Hot Rod <hotrod.apple2@gmail.com> writes:
> 
> > Hi,
> >
> > After imaging the bulk of the disks I have, I ended up with a small
> > handful that seem to either still be in DOS 3.2 format, or protected
> > nibble copies (or both I suppose).
> >
> > One of them was a copy of The Voice, written by Ed Zaron and from MUSE
> > (1980).  At first I thought it was just a DOS 3.2 disk, which it was,
> > but it wouldn't read using Copy ][+ set to DOS 3.2.  Well, kinda.  It
> > was able to read the even sectors, but not the odd sectors.  So, I
> > assumed it had some form of protection still on it.
> [...]
> 
> Sounds similar to Castle Wolfenstein's protection except the bit about
> the odd sectors.  Wolfenstein similarly works fine in DOS 3.3.
> 
> 
> -- 
> --
> Jerry    awanderin at yahoo dot ca

About 20 years ago I looked at the sectors on my Castle Wolfenstein disk.  The disk worked with my original DOS3.2 drive and controller, and then worked after making the change to DOS3.3 (swapped a chip on the disk? or controller?).

I looked at the Castle Wolfenstein diskette to break the copy protection, and if I'm remembering correctly, I noticed there were 2 sectors on track 0 that were BOTH sector 0:  One was written in DOS3.2 format and the other in DOS3.3 format.

I remember thinking that was rather clever of the programmers to write the diskette to work for both 3.2 and 3.3.

Tom