[Coco] Help retrieving Coco disk images

Arthur Flexser flexser at fiu.edu
Wed Nov 12 17:58:18 EST 2014


There was a drive-speed checker program included on the boot disk of OS-9
Level one.  I THINK it was fairly short and exclusively in Basic, so you
might be able to find a copy online.  If other storage media aren't
working, you could probably just enter it from the keyboard.

Art

On Wed, Nov 12, 2014 at 5:21 PM, John Goerzen <jgoerzen at complete.org> wrote:

> How do I do that?
>
> Thanks Art,
>
> John
>
> On 11/12/2014 04:19 PM, Arthur Flexser wrote:
> > Maybe worth checking the drive speed before buying a new drive?
> >
> > Art
> >
> > On Wed, Nov 12, 2014 at 12:43 PM, John Goerzen <jgoerzen at complete.org>
> > wrote:
> >
> >> Hi folks,
> >>
> >> I was a Coco II (Disk Extended BASIC) user way back when.  I am
> >> currently trying to preserve what data I had on those disks.
> >>
> >> To do so, I have assembled a DOS machine out of old parts, including a
> >> real 1.2MB FDD that works.  I have the COCO2EMU with its RETRIEVE.EXE.
> >> I also have version 1.3 of RETRIEVE.EXE.
> >>
> >> Both of them have only been able to read a single disk without errors: a
> >> factory Tandy disk labeled "One-on-One".  I have no memory of what that
> is.
> >>
> >> On all my other disks, it generates a read error for sector 1 of every
> >> track.  That is, if I ignore the error, it will read the rest of that
> >> track's sectors but generate an error on sector 1 of the next track.
> >> (Or perhaps it is ignoring the entire track and doing nothing at all...)
> >>
> >> Any ideas of what I might try here?
> >>
> >> Thanks,
> >>
> >> John
> >>
> >>
> >> --
> >> Coco mailing list
> >> Coco at maltedmedia.com
> >> https://pairlist5.pair.net/mailman/listinfo/coco
> >>
>
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
>


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