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I have several dozen hybrid Mac/PC CDs and would like to create .iso images of them. The Mac partitions are HFS and HFS+, the PC partitions are ISO9660.
Currently, I copy the Mac content after mounting the default HFS partition. Then I manually mount the ISO partition using mount_cd9660
and so forth via the Terminal, and copying the PC content separately.
I can then create a new hybrid .iso using the two chunks of copied content, but would love to find a way to simply copy the original CDs directly to .iso images while maintain the hybrid formatting.
Is this possible at all?
I have verified that this method works … partially.
The .dmg image that gets created contains both the contents of the HFS partition and the ISO partition from the source CD. The HFS partition mounts by default on the Mac, but when you mount the ISO partition, it includes those same Mac files and folders alongside the PC formatted content.
It’s unfortunate that the Mac content ends up sitting amidst the PC content, as it’s basically a duplicated set of files, but with all of the Mac-specific resources and file attribute information stripped away.
So, we’re almost there, but not quite. – Grant Hutchinson – 2020-02-08T21:19:12.907
Sorry it didn't quite work. tbh it's so long since I had to do anything like this my memory is hazy. I used to use Roxio Toast for many years, for all kinds of optical disk twiddling, but it might be a bit expensive if you only need it for one trick. – Tetsujin – 2020-02-09T10:38:35.190
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Looking into this a bit further, it seems like Toast might be the best solution. It can apparently copy hybrid discs verbatim. Likely worth it for me, as I have dozens of discs to image.
– Grant Hutchinson – 2020-02-11T18:46:48.763