Re: .NiB to disk

[Andy McFadden <fadden@fadden.com>]

Mark Percival <mark@syndicomm.com> wrote:
> You millage will vary depending on what is on the image.  One .nib image
> for sure won't work is the DOS 3.2 System Masters that I uploaded to Asimov
> eions ago.
> 
> ftp://ftp.apple.asimov.net/pub/apple_II/images/masters/dos32std.gz
> ftp://ftp.apple.asimov.net/pub/apple_II/images/masters/dos32pls.gz
> 
> Either of these won't convert to .dsk.  They need to be .nib in order for
> the 13 sector encoding to work.

These actually *could* be made to work, perhaps with an extension to
the 2MG format, but we'd need to modify the emulators to handle 5&3
encoding.

Some disk images are in .NIB format to preserve the disk volume number.
CiderPress will try to preserve the volume number if you convert to 2MG,
but it'll get lost otherwise.  If the volume number has multiple values,
e.g. it changes on each track, this won't work.  It also only works in
emulators that respect the 2MG volume number value (I think KEGS does
and AppleWin doesn't, but don't quote me on that).

Some .NIB images have a "dual boot" track 0, with both 13-sector and
16-sector versions of t=0 s=0.  (You can access both from the CiderPress
disk viewer by changing the disk format from a pop-up menu.)  Converting
these to .dsk will work, but you'll lose the dual-bootedness.

I think there are some fully protected games in the Asimov collection,
e.g. apple_ii\images\games\action\lastglad.gz.  These just aren't going
to convert.

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