Re: Brutal Deluxe's holidays project 3: EDD/SST and NIB images

[Nick Westgate <nick.westgate@gmail.com>]

On Aug 12, 5:35 am, Toinet <antoine.vig...@laposte.net> wrote:
> Third project of Brutal Deluxe during the summer holidays for the
> Apple IIs: EDD/SST and NIB images.

Fantastic news! Question: How long are your holidays!? ;-)

> The options:
>
> - Use a similar NIB format as SST.

It would be nice to have this.

>   I have to admit I dislike that idea in the sense that we would lose
> the 1/2 or 1/4 track options and limit to (the vast majority of) 16-
> sec disks. Spiralling disks or some 18-sec disks may not work.

Actually the 1/2 _or_ 1/4 tracks could be kept by storing them
instead of the adjacents whole (or other 1/2 or 1/4) tracks.
This is sufficient for non spiralling disks, and in fact 1/2 track
disks like that would currently work in AppleWin.

>   On the contrary, that would offer compatibility with the current
> emulators. Unless NIB images are encapsulated on a 2MG file that would
> include the following information: first track (0), last track (34),
> step (1, 1/2 or 1/4) and track length ($1C00)

For your new NIB format, it would be nice to be able to include
only needed tracks and specify this with a track (bit)map.
Of course, this editing (removal of unneeded tracks) to create a
"sparse track image" could be done at a later time.

> As for the other projects, your comments are welcome.

Um, awesome work!

Cheers,
Nick.