🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.os.msdos.misc
Article #3654

Re: How to read MAC disks on PC?

#3654
From: Caryn K. Roberts
Date: Fri, 08 Jan 1993 22:50
34 lines
1894 bytes
From article <817@ulogic.UUCP>, by hartman@ulogic.UUCP (Richard M. Hartman):
> PC disks are formatted in concentric circles.  Mac disks are
> formatted in a spiral (like your old black vinyl records).  (This
> is what let Macs put 800k on a floppy that the PC could only get 
> 720k on.)  The Mac drive (actually the superdrive) can be controlled 
> to read concentric-formatted disks.  I do not believe that there is
> a way to control the standard pc drives to read spiral-formatted
> disks.  There may be special hardware out there that can do it.
> 
> Good luck.
> 
> 		-Richard Hartman
> 		hartman@ulogic.COM
> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> "If we do not succeed, we risk failure."			-D. Quayle


GIGO.
Mac disks are formatted just like MS-DOS disks except that density varies
per track on Mac disks. In early Macs the disk speed was varied, but 800k
and 1.44m discs accomplish this by varing the data read/write stream.

Caryn Kristen Roberts   (206)237-2870(days)  Boeing Commercial Airplanes
Internet: ckr2196@aw2.fsl.ca.boeing.com      ditto
In real life the following works just fine:
AOL: CarynKR2   FIDO: Caryn Roberts (1:343/104)  Internet: CarynKR2@aol.com
Best Internet: Caryn.Roberts@f104.n343.z1.fidonet.org

-- 
Caryn Kristen Roberts   (206)237-2870(days)  Boeing Commercial Airplanes
Internet: ckr2196@aw2.fsl.ca.boeing.com      ditto
In real life the following works just fine:
AOL: CarynKR2   FIDO: Caryn Roberts (1:343/104)  Internet: CarynKR2@aol.com
Technical Details
Message-ID: <1993Jan8.225002.4186@aw2.fsl.ca.boeing.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!bcstec!aw108!aw45!ckr2196
References: <817@ulogic.UUCP>

Show Full Headers
Complete Article Headers
Newsgroups: comp.os.msdos.misc
Path: arc1-ca.pugleaf.net!sparky!uunet!bcstec!aw108!aw45!ckr2196
From: ckr2196@aw2.fsl.ca.boeing.com (Caryn K. Roberts)
Subject: Re: How to read MAC disks on PC?
Message-ID: <1993Jan8.225002.4186@aw2.fsl.ca.boeing.com>
Organization: none
References: <817@ulogic.UUCP>
Date: Fri, 8 Jan 1993 22:50:02 GMT
Lines: 34