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Disk Copy 4.2

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[www].se [ftp].se [mirror].us
Disk-Copy-42.sit (37.74 KB)
For System 1 - 5 - Mac OS 9
[www].se [ftp].se [mirror].us
DiskCopy-v50.sit (22.65 KB)
For System 1 - 5 - Mac OS 9
[www].se [ftp].se [mirror].us
DiskCopy-v55.sit (25.18 KB)
For System 1 - 5 - Mac OS 9
[www].se [ftp].se [mirror].us
Disk-Copy-4-clone-6.sit (30.50 KB)
For System 1 - 5 - Mac OS 9
[www].se [ftp].se [mirror].us
DiskCopy-v70.sit (31.79 KB)
For System 1 - 5 - Mac OS 9
[www].se [ftp].se [mirror].us
DCOPY8E.HQX (112.48 KB)
For System 1 - 5 - Mac OS 9
[www].se [ftp].se [mirror].us

Disk Copy 4.2 is a floppy disk duplicator, capable of creating byte for byte replicas of original floppy disk media. From 1988 until becoming obsolete in 1994, it was one of Apple's official disk imaging softwares. The other was DART, which never gained the universal popularity that Disk Copy 4.2 experienced.

By the early 1990's Disk Copy 4.2 was showing its age. A fresh Apple team headed by Byron Han made a complete rewrite of Disk Copy and this eventuated into Disk Copy 6, dominating Apple's disk duplicating software range until the demise of classic Mac OS 9.2.2.

What the differences there are between these cloned versions are I can't tell, other than 5.5 & 8.0 which have noted differences above. They all, except for their colorful splash screens, look and behave like just Disk Copy 4.2.

DiskCopy 4.2 by Steve Christensen from Apple. Steve used his intimate knowledge of the SONY driver to make this one of the most elegant and compatible applications ever packed into 24K.

DiskCopy 5.0d1 - 6.0 by Steve Christensen (and "anonymous contributors"). Based on a beta of DiskCopy 5.0 that was leaked to the general public without Steve's consent, this application has been lurking on BBS's for years, wearing several different version numbers. Although they look and act much like DiskCopy 4.2, these builds add support for two new image file formats, an RLE compressed disk image and a self-extracting disk image that can decompress and save itself to floppy disk. Use of these versions of DiskCopy is discouraged since they're not supported by Apple and the new image file formats they produce don't work with other disk image programs.

Excerpt: Getting Through the Media Blitz - TidBITS

See Also: Disk Copy 6

Similar products:
Copy II Mac
MungeImage 1.2.0
ShrinkWrap 2.1
ShrinkWrap 3.5.1

Architecture: 68k

Suitable for any Macintosh with a built-in floppy disk drive. Also works with USB floppy disk drives (1.4MB HD disks only)

Disk Copy 4.2 will run on earlier Mac OS's than SSW 6 but the above v4.2 DL's .sit archive will only expand on Systems 6.x or newer, requiring a StuffIt 3.5 or newer to extract.

Basilisk II compatibility is limited to the Windows build 142 (and other builds by Lauri Pesonen) of Basilisk II and the use of a floppy drive, internal or USB, on a Windows platform (1.4MB floppy media only).

Mini vMac and the Mini vMac II variation will load and can image disk image files if dropped into the running Mini vMac window - This works for 400k and 800k floppy disk images only.


MacTouch's picture
by MacTouch - 2018, February 14 - 6:57pm

Thanks. So may be this could also work for this old version of Star Trek... Smile

slomacuser's picture
by slomacuser - 2018, February 14 - 6:45pm

I have aded version 8.0 from 1995 and has ability to copy copy protected floppy disks, I have tried to copy Adobe Illustrator 1.1 Program disk without luck, maybe it is some hidden keystroke to activate copy protected discs?

mathieudel's picture
by mathieudel - 2010, September 22 - 11:50am

Indeed, I've just gone to DiskCopy 6.3.3 download page and it says that 6.5b13 is included in the package... So I will not upload my own copy Big smile

It's quite frequent on the site that programs have several pages for different versions, some of those pages containing several versions aswell Tongue.
When the title of the page is, like here, 'Program_name vW.X & vY.Z' I think it's not a problem, but when it says 'Program_name vX.Y' then its quite annoying. Can't something be done to avoid this situation ?

mathieudel's picture
by mathieudel - 2010, September 22 - 11:18am

I don't know if it is of any interest, by I have a copy of the 6.5b13 version. I could upload it if you want...

MikeTomTom's picture
by MikeTomTom - 2010, September 22 - 8:02am


6.4 was the odd app out, and this is an odd version

Have had a little peek at it. This Disk Copy should be classed as a "Disk Copy 4.x family" variant only. That is, it is a pure 68k app. Contains no PPC code. It cannot open or mount Disk Copy 6.1.x NDIF (New Disk Image Format) files, nor create/mount files from any source, such as folders or any file other than a floppy disk (it cannot mount these either).
It bears no resemblance to Disk Copy 6.1 or newer other than the version number contains a "6". It is basically the same as Disk Copy 4.2 in operation. Whether it does a better job than Disk Copy 4.2 or has any advantage over it, this would be hard to say at 1st glance.

Balrog's picture
by Balrog - 2010, September 22 - 2:58am

DC 6.0 will be interesting for us to study, at least Smile

Vitoarc's picture
by Vitoarc - 2010, September 22 - 2:46am

Mike Garden, the funny thing is, is that I almost didn't upload this because I just didn't know a good spot to put it. Then I figured that 6.4 was the odd app out, and this is an odd version, so I decided why not. Plus I know that anything and everything Apple is welcome on this site... but how much use DC 6.0 will be to anyone remains to be seen.

Oh and thanks for your new RISK upload. Smile

MikeTomTom's picture
by MikeTomTom - 2010, September 22 - 1:30am


I acquired DiskCopy 6.0 from a 1995 University CD. Appearance wise, it looks just like DC 4.2

Damn, something else you've uploaded that looks interesting Wink
I've never seen version 6.x look so much like a vers. 4.x before.

Balrog's picture
by Balrog - 2010, September 22 - 12:40am


There's some info at . Basically it supports a compressed format and a self-contained format. I wonder if this compressed format is similar to DART ... probably not, though. Unlike Disk Copy 6.1, it does not use the resource fork for compression data.

Vitoarc's picture
by Vitoarc - 2010, September 21 - 11:31pm

I acquired DiskCopy 6.0 from a 1995 University CD. Appearance wise, it looks just like DC 4.2 It will be interesting to note the difference between the two versions.