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Hi all, First of all, forgive me if I sound clueless, but I'm extremely new to disk preservation and learning on the go. I have acquired a set of floppy disks containing an application protected by COPS COPYLOCK II. The first of this set of disks acts as a "master" floppy: it's required to be inserted at all times and I don't seem to be able to create an image of it. The disk is very old, and although on brief inspection it looks fine, I'm not excluding damage. Nevertheless it does create a somewhat valid image. I'm able to install the software, however running it eventually leads to an error:
Which makes me think it might not be damaged after all. I assumed creating an SCP image would always work, regardless of copy protection, but I'm getting lots of errors:
As you can see, there's straight away an error on the first track. I also occasionally get reports of "missing sectors" and:
This is the full report:
Hopefully you can help me shed some light on this, thank you all! |
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Replies: 2 comments 1 reply
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Don't specify a |
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Thank you! That indeed worked, at least I have a valid raw flux image! That did read 81 tracks though, which is weird, it might very well be the copy protection at work 🤔 At any rate, thanks again for helping out, I'll resume my investigation on how to deal with the protection :) |
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Don't specify a
--format
to gw read if you want to do a raw read. The--format
specifier causes the raw flux to be decoded, and that decoded track is then translated back into flux and written to SCP! So drop the--format
or else add--raw
to the command line: This causes format decode to occur for verification only (the raw flux is written to SCP image rather than decoded-then-reencoded flux).