I'm trying to do the same thing with some (downloaded) Teledisk images for an Altos 580 server which has a similar 96tpi floppy with no luck (a plea for help here). My limited understanding is that these drives use double density media and that a standard 1.2 mb drives don't work too well with that (the manuals all say that writing out 360k AKA 40 track disks on a 1.2mb is a bad thing). Did you take the drive in the SB180 and put it in the Compaq, still calling it a 1.2, 360k or even a 720k 3.5? I tried that with a different (SA-465) 96tpi drive jumpered as drive 1 and it seemed to write disks with no reported problems on the Teledisk write. The Altos still didn't like the disk though but that might be a function of the original files (or something else I forgot to do). Gary F. ------Oiginal below edited for brevity.----- Message: 6 Date: Wed, 24 Nov 2004 19:48:18 -0500 From: "Richard A. Cini" &lt;rcini(a)optonline.net&gt; Subject: RE: Making CP/M disk images To: "'Dwight K. Elvey'" &lt;dwight.elvey(a)amd.com&gt;om>, "'General Discussion: On-Topic and Off-Topic Posts'" &lt;cctalk(a)classiccmp.org&gt; Message-ID: <000801c4d288$74daad50$6501a8c0@bbrk0oksry5qza> Content-Type: text/plain; charset=us-ascii Dwight: Interestingly, Teledisk did skip every other track. These are DSDD disks formatted on the SB180 machine using the "40 track" option. The drive in the SB180 is a 96TPI drive (HD) and the disk on the PC side is a standard 1.2mb. I'll have to see if Teledisk has any options that may address this. As I recall, the number of configurable options was sparse, though. This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. Unless otherwise stated, opinions expressed in this e-mail are those of the author and are not endorsed by the author's employer.