Re: Question about disk images

[Linards Ticmanis <ticmanis@gmx.de>]

BLuRry wrote:

> ****************************************************
>  Transferring Copy Protected Disks : PC -> Apple 2
> ****************************************************
> 
> You can reverse the above process to transfer NIB disk images back to
> real floppy disks on the Apple 2.  To do this, you would use SST on
> the Apple 2 emulator to pack the NIB disk onto two .DSK disk image
> files, ADT these across onto 2 floppy disks on the real Apple 2, and
> then use SST on the real Apple 2 to unpack (stitch) these together
> again onto a single floppy disk.

This part won't work. As Knut noted below, the vital sync information is
lost once you go from the two SST .dsk's to the .nib image.

If you can guess where the sync stuff is, it's not really that hard to
transfer the .nib back correctly. I wrote a bit of code (cc65 plus some
assembly stolen from "Beneath Apple ProDOS") to do this and have
successfully transferred the original Ultima game (non-standard 13
sectors) and the Infocom V4/V5 games (one-big-sector-per-track format).
But it's not a fully automatable process.

-- 
Linards Ticmanis