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You are here: MacNN Forums > Enthusiast Zone > Classic Macs and Mac OS > Defeating Old Copy-protected Disks

Defeating Old Copy-protected Disks
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Fresh-Faced Recruit
Join Date: Feb 2000
Location: Shorewood, MN, USA
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Feb 16, 2001, 12:18 AM
Over 10 years ago I purchased some software on disks that were copy-protected. They are 520K disks, and my floppy reader won't read them. Because they are copy-protected, I cannot copy them onto 1.44MN disks, which my floppy drive will read.

I know that there were ways to defeat copy-protection. Does anyone remember how to do it?
Clinically Insane
Join Date: Apr 2000
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Feb 16, 2001, 12:23 AM
If you can find an old enough computer to read them, use a disk imaging program on them, and then use the disk images.
Disk Copy probably won't be much help... it doesn't like corrupted sectors etc.
Try to find something like CD-Copy for floppy disks...
Sorry I couldn't help

Mac Elite
Join Date: Jun 2000
Location: South Hadley, MA, USA
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Feb 16, 2001, 11:31 AM
I can't speak to 520K disks, because the Mac never used such. It went 400KB, 800KB, and 1.44MB. Anyway, if you're talking about one of those, you might want to scare up a copy of Copy II Mac and do a bit-copy. Remember those days?
Is this a good place for an argument?
Peace on Earth, Good Will Toward Me
Junior Member
Join Date: Jan 2001
Location: Pottstown, PA. USA
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Feb 18, 2001, 03:25 PM
Originally posted by denim:
you might want to scare up a copy of Copy II Mac and do a bit-copy. Remember those days?
for the Apple ]['s, 'Copy ][ Plus'!... Oh, yeah... sector copy/bit copy/ alter boot blocks etc... Those were the good ol'days!

-- "Does Microsoft mean 'small & limp?'
Dedicated MacNNer
Join Date: Oct 1999
Location: Austria
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Feb 25, 2001, 09:09 AM

I understand you are referring to double density floppies (DS/DD, capacity unformatted 800k, formatted for PC they were 720k).

In the old days we used to copy these DS/DD floppies with a copy protection scheme for Mac OS in an Amiga (such as the Amiga 500) by doing a diskcopy, similar to the bit copy method mentioned above already. The Amiga's diskcopy scheme did not know anything about the Mac-related copy protection information on the original disk, it just copied all the floppy contents...



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