[Coco] 3.5" Floppies on my Coco 3!

Sat Apr 6 13:41:29 EDT 2013

well i use 1.44mb with the hd covered as 720 and they work fine between my
pc and my panasonic fs-a1wsx which has a 720k drive (you don't need to
cover the hole on these as they don't understand  they). In fact i use the
pc to transfer files for it.

on my coco my experience is: format first on your PC as 720K then format on
your coco either 35 tracks DSKINI or OS9 80 tracks double side as well. I
use both sides with disk basic as drive 0 and drive and it just work fine.l

One note: saving BASIC files seems to corrupt the disk from time to time
but this seems to be an old coco issue right ?

On Sat, Apr 6, 2013 at 12:32 PM, Michael Graham <mkgraham at gmx.com> wrote:

> I must have unusually good luck, then, as I've been using 1.44MB disks
> with the hole covered as 720KB disks for a few years now, and I generally
> don't have any problem reading the disks back, even a few weeks after I've
> written them. I guess I haven't really tested any longer than that, though,
> as I usually think of something different I'd like to put on the disks, so
> I reformat and write new content to the disks.
>
> Although, to be fair, I am using exclusively 1.44MB drives in 720KB mode
> to handle the disks, and I know they won't read back on a real 720KB drive
> (I did actually try that once).
>
> --Michael
>
> On 04/06/2013 05:28 AM, Gene Heskett wrote:
>
>> On Saturday 06 April 2013 06:08:58 Kip Koon did opine:
>>
>>  Hi All,
>>>
>>> I communicated with my very first two 3.5" floppy drives on my Coco 3
>>> using Disto's Super Controller tonight!  I put HDBDOS 1.4 DW4 in the
>>> super controller.  It also has the 80x24 Composite video output
>>> daughter board with the mono sound output, an RTC and a Centronics
>>> Parallel port all on the daughter board for those that don't know what
>>> a Disto Super Controller is.
>>>
>>> I successfully formatted two real 720KB 3.5" disks and one 1.44MB disk
>>> with the capacity hole covered to make it look like a 720KB disk.
>>>
>>>  That won't usually last, sometimes not even an hour.  The recording is
>> too
>> weak for the magnetic coating of a HD disk and will fade.
>>
>
>
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