[sebhc] Archive disk images/formats

[Steven Parker]

Eric says:
>Cool more disk images!  However, it looks like we've landed
>on a generic (read "non-distinquishable") disk image format.
>Even the extension is generic ".disk".

I wanted to get stuff out there quickly to support Dave's work, and get the 
collection started.

>... how about a just a simple header ...

Let's not rush it .. particularly not until we have an idea of what kind of 
info we REALLY want.  I'm sure we'd want a bit more, like number of sides 
and bytes per sector.  On the other hand, I'm still not sure any formats 
exist that can't be identified purely by file size.  But it's worth more 
investigation first.

In the meantime, the pure data is what we get from the existing dump 
utilities, and what Dave needed.

I just added descriptions and a readme file to the archives to indicate that 
the disk images (at the moment) are all pure data images of Single sided, 40 
track, 10 sectors per track, 256 bytes per sector disks.

>Hopefully, in the not too distant future, a much larger
>integrated archive of software images will assemble itself,
>and the H8/H89 images will be part of that.

What are you anticipating having BESIDES H8/H89 disks?

Jack says:
>When things settle down on a share-able disk image format, I'll add some 
>disks.

Please don't wait .. I've never seen HDOS 3 myself!  I promise to convert 
everything we have when we decide on another format.  I just don't want to 
do it more than once!

To help us in deciding on an eventual format, would everyone please post any 
existing formats that you know of.  To start things off:

H17:
  1 side, 40 track, 10 sector, 256 byte (5 1/4 inch, hard sector)
  1 side, 80 track, 10 sector, 256 byte (5 1/4 inch, hard sector)
  2 side, 80 track, 10 sector, 256 byte (5 1/4 inch, hard sector)
H37:
  2 side, 40 track,  9 sector, 512 byte (5 1/4 inch)
  2 side, 80 track, 15 sector, 512 byte (5 1/4 inch)
H47:
  1 side, 77 track, 26 sector, 128 byte (8 inch)

Additions?  Corrections?

- Steven

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