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Your rating: None Average: 5 (8 votes)
Year released:
[www].se [ftp].se [mirror].us
DiskDup_Pro1.2.hqx (121.73 KB)
MD5: bf87bd3e1110e3e7955f102f3d2f65b8
For System 6.x - Mac OS 9
[www].se [ftp].se [mirror].us
diskdup_pro_1.3.2a.sit (60.03 KB)
MD5: ea4918e688b5ffc00e4953b21549854f
For System 6.x - Mac OS 9
[www].se [ftp].se [mirror].us
diskdupplus-27.sit (50.17 KB)
MD5: e6fa540cf43803e294cba6989c5faf94
For System 6.x - Mac OS 9
[www].se [ftp].se [mirror].us
DiskDup2.9.2.sit_.bin (60.63 KB)
MD5: 355566f782c61f56829cc608fa6451ec
For System 6.x - Mac OS 9

A shareware utility that creates, mounts, and writes disk images of floppies. Unlike ShrinkWrap, DiskDup can image 400K MFS disks. It can overcome mild forms of copy protection, and can be set to tolerate bad sectors in case of damaged or more strongly protected disks.

List of versions archived here:

  1. A pre-registered copy of DiskDup Pro 1.2. This is the commercial variant of DiskDup+.
  2. A pre-registered copy of DiskDup Pro 1.3.2a.
  3. The version 2.7 of the standard DiskDup+ shareware, which can be run under System 6. This archive is compressed with StuffIt v3.6 so it can be extracted on SSW 6 or newer.
  4. The version 2.9.2 of DiskDup+.
  5. Similar products:
    Copy II Mac
    DiskCopy 4.2
    DiskCopy 6
    MungeImage 1.2.0
    ShrinkWrap 2.1
    ShrinkWrap 3.5.1

Architecture: 68k


lilliputian's picture
by lilliputian - 2020, April 13 - 12:56am

very nice! Will you be adding it to this page?

Realitystorm's picture
by Realitystorm - 2020, April 12 - 9:21pm

I've managed to track down a registered copy of DiskDupPro 1.0.3 hidden on the web.
It works under system 6.0.8 so I'll be adding it to my image files for people starting out with SCSI2SD or FloppyEMU etc.

My images (soon to be updated)

3371-Alpha's picture
by 3371-Alpha - 2017, March 7 - 2:42am

So when you say this can replace disk copy, do you mean I can delete disk copy to save hdd space? Also how does this compare to ShrinkWrap?

jdmoser's picture
by jdmoser - 2015, February 8 - 7:21am

This is perfect for creating and writing images for your 400k and 800k floppy Macs... even more so on a newer OS 9 machine with an internet connection and a floppy drive, like the Power Macintosh G3. Totally invaluable.

MikeTomTom's picture
by MikeTomTom - 2012, May 1 - 1:29am

A little known tid-bit (perhaps): This has to be the only disk imaging software I know of that can mount Disk Copy 4.2 (and its own DiskDup+) floppy disk image files onto a System 6 desktop, like Disk Copy 6 & ShrinkWrap can in Systems 7x - 9x. - Gets 5 stars from me for that, alone.

[Edit]: exception - "MountImage" can also mount Disk Copy 4.2 image files onto a SSW 6.x desktop.

Balrog's picture
by Balrog - 2010, September 30 - 9:16pm

Please add v1.3.2a to this page anyway. Smile

Balrog's picture
by Balrog - 2010, September 30 - 9:14pm

The one and only utility that can overcome copy protection is Copy ][ Mac. But it can't create images, only duplicate disks. Sad If anyone wants it I can upload it (I have most of the versions).

Edited by IIGS_User: Copy ][ Mac link added Wink

bertyboy's picture
by bertyboy - 2010, September 30 - 7:51pm

I've found a copy of DiskDup Pro v1.3.2a. do you think it has more features than this one ? Hoping it can overcome some of the copy-protection used with bad sectors on floppies.

I'll check it out in vMac and give it a check with Disinfectant, if it's not the same as this one, I'll add it to the page.

xy's picture
by xy - 2010, September 23 - 10:15am

Yeah, but DiskCopy 4.2 does not work on Mac OS 9.2.2. DiskDup does.

Balrog's picture
by Balrog - 2010, September 22 - 9:17pm

Better to use Disk Copy 4.2. Smile

Attila's picture
by Attila - 2009, December 22 - 6:02pm

I've added an AutoTyper to the archive, so that DiskDup+ images that have lost their file type and creator information can be opened by DiskDup+ again. For some reason it won't give you the option of opening them even though they're still good. Now, just drag and drop onto the AutoTyper and everything's A-OK!