Apple II 16 sector disk - Revision history

Dan Tobias: /* Data transfer info */

2020-02-14T00:22:39Z

‎Data transfer info

Dan Tobias: /* Data transfer info */

2019-08-31T01:28:08Z

‎Data transfer info

Dan Tobias: /* Other links */

2019-08-30T02:19:43Z

‎Other links

Dan Tobias: /* Software, disk images, and emulation */

2017-12-03T06:02:47Z

‎Software, disk images, and emulation

Jsummers at 16:50, 21 June 2017

2017-06-21T16:50:51Z

Dan Tobias: /* Other links */

2017-05-21T19:38:31Z

‎Other links

Dan Tobias: /* Other links */

2016-06-11T00:51:10Z

‎Other links

Dan Tobias: /* Other links */

2016-04-02T14:34:53Z

‎Other links

Dan Tobias: /* Other links */

2015-03-14T18:45:48Z

‎Other links

Dan Tobias: /* Other links */

2014-11-14T11:59:06Z

‎Other links

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 * [http://retro.icequake.net/apple2pc.html Apple-to-PC disk transfer info]
 * [http://projects.raphnet.net/#adt Linux port of Apple Disk Transfer 1.22]
 One way to get the files from those disks to something newer is to attach a Compact Flash interface to your Apple:

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 * [http://dreher.net/?s=projects/CFforApple1&c=projects/CFforApple1/main.php Compact Flash interface card for Apple I]
 * [http://dreher.net/?s=projects/CFforAppleII&c=projects/CFforAppleII/main.php Compact Flash interface card for Apple II]
 == Other links ==

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 * [https://ia801508.us.archive.org/18/items/Gumball4amCrack/Gumball%20(4am%20&%20san%20inc%20crack).txt Cracking Gumball] (has some background information on how bytes are encoded on Apple disks)
 * [http://retroconnector.com/disk-images-edd/ Disk Images from EDD] (actual viewable images of the bits in Apple II disks)
 [[Category:Apple II series]]

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 * [https://archive.org/details/Diversi-DOS_v2c_1982_DSR Diversi-DOS download and in-browser emulation: Internet Archive]
 * [http://www.virtualii.com/ Virtual II: Apple emulation for Mac]
 == Data transfer info ==

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 While the disks were single-sided, users often punched an extra notch on the opposite side to permit the disks to be flipped over for use of the other side (the notch was necessary to prevent the disk from being seen by the drive as write-protected). This was done despite being discouraged by disk manufacturers, since the disks weren't designed to work well this way (only one side was certified for data storage, and also running it in both directions could cause debris to build up in ways unanticipated by the designers). However, some disk manufacturers eventually did produce double-notched disks for this use.
-When the 16-sector format was introduced, a utility called MUFFIN was distributed on the system disk to transfer files from 13-sector disks into the new format. An "unofficial" utility called NIFFUM transferred files in the opposite direction. Another unofficial utility, "Advanced Demuffin", handled various sorts of nonstandard disks (particularly copy-protected ones) with different track/sector layouts.
+When the 16-sector format was introduced, a utility called MUFFIN was distributed on the system disk to transfer files from 13-sector disks into the new format. An "unofficial" utility called NIFFUM transferred files in the opposite direction. Another unofficial utility, "Advanced Demuffin", handled various sorts of nonstandard disks (particularly [[copy-protected]] ones) with different track/sector layouts.
 == Software, disk images, and emulation ==

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 * [http://www.6502lane.net/2015/03/12/don-worths-beneath-apple-dos-original-text-files/ Don Worth’s Beneath Apple DOS original text files]
 * [https://ia801504.us.archive.org/14/items/RockysBootsv40_4amCrack/Rocky's%20Boots%204.0%20%284am%20crack%29.txt Cracking Rocky's Boots protected disk from 1985]
 [[Category:Apple II series]]

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 * [http://www.textfiles.com/apple/CRACKING/addocs.txt Advanced Demuffin docs]
 * [https://archive.org/details/PostDemuffinPatcher4am Post Demuffin Patcher: removes copy protection from disks]
 [[Category:Apple II series]]