Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!cbatt!ihnp4!inuxc!pur-ee!uiucdcs!convex!convexs!rotheroe From: rotheroe@convexs.UUCP Newsgroups: comp.sys.ibm.pc Subject: Re: Writing 360K diskettes on 1.2 M Message-ID: <119200002@convexs> Date: Thu, 11-Dec-86 08:44:00 EST Article-I.D.: convexs.119200002 Posted: Thu Dec 11 08:44:00 1986 Date-Received: Mon, 15-Dec-86 06:51:30 EST References: <2441@ecsvax.UUCP> Lines: 24 Nf-ID: #R:ecsvax.UUCP:2441:convexs:119200002:000:1249 Nf-From: convexs.UUCP!rotheroe Dec 11 07:44:00 1986 >> a 360K disc formatted in a 1.2M drive (with the /4 option to format as >> a 360K disc, of course) canNOT be read in about 1/3 of the 360K >> drives when a 1.2M drive also writes the data to the disc, but >> a 360K disc formatted in a 360K drive and written to by a 1.2M drive >> can NEARLY always be read in a 360K drive. > I would disagree with the above entirely. The above rules are either > accidentally reversed or a recipe for disaster. Disks made on 360k > drives should NEVER be written to with a 1.2 Meg drive if you want > to subsequently be able to read them on a 360K drive again (unless you > bulk erase and start all over again). In a previous job, I frequently had to transfer files between ATs and XTs using floppy disks. The AT had only a 1.2M drive, and the XT 2 360K drives. Usually the transfer disks were formatted by the 360k drive, and used for both AT to XT and XT to AT transfers. In many hundreds (possibly over a thousand) transfers, I had only 1 problem, which was a bad disk (wouldn't reformat, on anything but an apple ][). There were multiple XTs and AT involved. Dave Rotheroe {allegra, ihnp4, uiucdcs, ctvax}!convex!rotheroe CONVEX Computer Corporation Richardson, TX