[Coco] VCC Emu problems

[Darren A.]

>Subject: Re: [Coco] VCC Emu problems

>Date: Sat, 04 Aug 2007 12:16:50 -0500

>

>At 08:34 PM 8/3/2007, you wrote:

>>I can't seem to use the RAW mode to access 5¼ disks in my 1.2MB drive. The 

>>720K 3.5" disks work fine however.

>

>

>

>Is this a laptop with an external floppy drive?  I know that OmniFlop won't 

>work on a laptop, and for whatever reason it can't, maybe the guts of VCC 

>is having the same problem.

>

>

>--

>Roger Taylor

>

>--

>


One big problem with using a 1.2MB  5.25 inch floppy drive is that the head 
steps at a finer resolution (96 tracks-per-inch I believe). A 5.25 inch CoCo 
floppy has 48 tracks-per-inch, so VCC would need to step the head twice for 
each track. This might work for READING CoCo floppies, but if you WRITE to 
the disk, it only writes on 1/2 the width of the track. This could make the 
disk unreadable on a CoCo 5.25 inch drive.


Darren

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