[Coco] Help retrieving Coco disk images

[Kandur]

Gene and John,
I was able to use 'modern' no-belt, direct drives,
at 300 rpm, to read and write 360k 5.25" diskettes.
http://qdv.pw/coco/?p=128 
Robert Gault gave me his excellent basic program
to verify the rotational speed.
http://qdv.pw/coco/?p=58 

Any leads on where to find a good 360K drive these days?
John

Kandur

Wednesday, November 12, 2014, 2:34:03 PM, you wrote:
> On Wednesday 12 November 2014 17:19:24 Arthur Flexser did opine
> And Gene did reply:
>> Maybe worth checking the drive speed before buying a new drive?

>> Art

> Yup, none of the belt style drives are now turning the correct speed as 
> the belt has stretched and is now slipping.  Since the belts aren't 
> generally available, I've been known to make do with whatever looks like 
> its about the correct length. I haven't tried it on a spindle belt, but I 
> do have a cdr/w in one of my shop machines whose little square section 
> belt to run the tray in and out stretched and gave up.  Took some fussing 
> but I cut about 1/4" out of it, the butt glued it back together with 
> superglue, and several years later it is still working but the machine is 
> now out of service & the new machine is all sata, where that drive was 
> ide/atapi.
>  
> Whether that could be done with the thin flat belt remains to be seen, but 
> if that is the problem, it might be worth a shot for really steady hands. 
> Mine likely don't quite qualify these days.  So I'd make a jig of some 
> sort to hold the ends steady and in touch with each other.

>> 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


> Cheers, Gene Heskett
> -- 
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS