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 rotated slightly. I just looked at the analog amplitude. I was just using a controller card instead of sampling. Dwight ________________________________ From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Chuck Guzis <ccl...@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 <ccl...@sydex.com> > wrote: >> 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. --Chuck