[Coco] IDE internal 100mb ZIP drives

[Mark Marlette]

At 11:37 PM 2/25/2005, you wrote:

Ray,

No problem and GREAT for looking in to it. PCdos is written in "C" from 
what Boisy has told me. It is a HUGE program.

CoCo is a fun machine. Keep us posted of your finds.

Regards,

Mark


>Mark,  I screwed up royally.  Turned on the CoCo for the first time in 
>about seven months to get your ident and realized I ran into the same 
>probem.  I rationalized by going from ZIP to floppy on the same machine 
>and started checking out pcdos to correct it (7+ months ago).  Searched 
>frantically for the notes I took and just spent several hours working from 
>there.
>
>Realizing that when Bob Santy wrote pcdos, noone would ever expect to 
>transfer data from media larger than 720k, I searched the module for the 
>1440 sectors or 737,280 byte limitations.  Also for formatted DOS 1420 
>sectors and 727,040 bytes.  No luck.  I have no idea what identifies media 
>as being formatted under MSDOS, so didn't look much further there.
>
>Next, I printed out dumps of the directory sectors of both 720kb floppies 
>and 100mb Zips both blank formatted and formatted with files. Will spend 
>some time looking at them, but what really struck me as strange is that 
>the first floppy sector has no similar features as the first ZIP 
>sector.  No wonder ther is an identification problem.  Will continue to 
>look for something that can be tweaked so the ZIP will be 
>identified.  Won't be easy, though, because the biggest ZIP is what I know 
>about MSDOS, or anything by Bill Gates.
>
>I deeply apologize for the misinformation I have been spreading.  I guess 
>I thought it was going to be a cinch when I broke away from it. Well, at 
>least it got me back to working with the CoCo ... and enjoying it!
>
>Cheers,  Ray
>
>
>Mark Marlette wrote:
>
>>Ray,
>>
>>Could you please ident your PCdos utility for me and report your
>>findings. My PCdos WILL not talk to a ZIPdisk, it tells me that it is
>>not a MS-DOS disk. So I'm curious on the differences.
>>
>>BTW, SuperDriver is out of this world. It is nice to have a driver that
>>can sense the drive(s). No more parameters to set up, it even figures
>>out the clustering for you. Of course you need to be running the latest
>>NitrOS-9 to have all of these nice features.
>>
>>TIA,
>>
>>
>
>
>
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