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Re: [prophet2000] Prophet 2000 disk format?

2008-03-15 by ac

Has anyone actually got Omniflop to work??

On 15/03/2008, John Pallister <john@...> wrote:
> Thanks for your encouraging words. ;) I'm sure that the
>  reading & writing (and probably the formatting) of the
>  floppies is possible; OmniFlop is the existence proof for that.
>
>  There is plenty of discussion in the archives, mostly from
>  people who leap straight from "I can't think of a way to do
>  this" to "this cannot be done." ;)
>
>  For the record, the answer to that piece of the puzzle is
>  Simon Owen's fdrawcmd.sys - http://simonowen.com/fdrawcmd/
>  This is a floppy drive filter driver equivalent to the one
>  that OmniFlop uses.
>
>  So, I think I'm on my way to getting the raw data on & off
>  the disk; reverse-engineering the disk image format may take
>  slightly longer... ;) I have asked Wine Country for any
>  information they have, but funnily enough they haven't come
>  back with any technical details yet. I admit it was a long
>  shot, but hey, there's no harm in asking (I hope).
>
>  Stay tuned,
>
>  John :^P
>
>
>  ac wrote:
>  > This has been discussed a few times on this list - check the archives.
>  >
>  > From the little that we know, the news has always been that this is
>  > not possible. The physical formatting of the disk is not compatible
>  > with "modern" floppy drives. This could of course be wrong as I've no
>  > idea where this originally came from.
>  >
>  > Good luck though! This is definately something we'd all find amazingly useful.
>  >
>  > ac
>  >
>  > On 13/03/2008, John Pallister <john@...> wrote:
>  >> Hello list(s),
>  >>
>  >>  I would like to write a program to read & write disks from a
>  >>  Prophet 2000/2002 sampler. To this end I'm looking for
>  >>  information about the disk geometry (sector size, sectors
>  >>  per track etc.) and the structure of the data on the disk.
>  >>  I've checked the service manual, but it didn't have anything.
>  >>
>  >>  If anyone can help me, that'd be great. I would of course
>  >>  make the program (and its source) freely available.
>  >>
>  >>  I apologise for the low analogue content of this message.
>  >>  And for cross-posting. And for wearing these shoes with
>  >>  these pants.
>  >>
>  >>  Cheers,
>  >>
>  >>  John :^P
>
>  --
>  John Pallister
>  john@...
>
>
>
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