dfitoimd: decoding Intel M2FM floppy flux images (was Re: Intel 432 floppy flux images for decoding)
dkelvey at hotmail.com
Tue Aug 9 10:02:49 CDT 2016
I was having problems recovering inner tracks on some 5.25 disk. I added some extra screws that allowed me to move the head both radially and up and down.
I was able to recover more but still didn't get it all.
The up and down allowed a little rotation as well as tracking.
On the inner tracks a small up or down looks like the head is
I just looked at the analog amplitude. I was just using a controller
card instead of sampling.
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Chuck Guzis <cclist at sydex.com>
Sent: Tuesday, August 9, 2016 12:33:24 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: dfitoimd: decoding Intel M2FM floppy flux images (was Re: Intel 432 floppy flux images for decoding)
On 08/08/2016 11:48 PM, Eric Smith wrote:
> On Mon, Aug 8, 2016 at 11:06 PM, Chuck Guzis <cclist at sydex.com>
>> At the expense of sounding like a complete idiot, have you checked
>> the alignment of the drive?
> I can't. I only have the images.
That's unfortunate. I run into mis-aligned disks not infrequently. I
don't know how to correct that one with software. When making cw-type
images, you can usually just inspect the histogram for a track and tell
by the groupings whether you're on track or not.
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