Re: Reading Commodore 900 disks in the 8250 (LP)

On Thu, Jan 11, 2024 at 2:22 PM Michal Pleban <lists_at_michau.name> wrote:
>
> Francesco Messineo wrote on 11.01.2024 13:14:
>
> > if it supports only GCR (I assume the same format as the 8250?) then
> > why you need to bother with MFM ?
>
> I do not :) I only want to read existing C900 GCR disks.

by now we are almost sure that the C900 uses a 96 TPI drive.
The good news is that you can read those disks on a "normal" PC 1.2M HD drive.
Also, the old 300 oersted 96 TPI drives are sometimes still found on
the usual sites like ebay.
100 TPI drives are possibly the rarest piece of hardware on earth :)
It's the only format I can't read at this moment, getting 8"
multi-standard drives was in comparison very easy.
There're various hardware tools to read odd disk formats. I like the
greaseweazle even if it's really lacking in good documentation :)

Frank
>