Help backing up HFS / ISO mixed media CDs

So I uh, happened to find about 30 different CD-Rs from a PC game developer which apparently contain work in progress versions of multiple games. None of these games are anything special, it's mostly educational / edutainment stuff. Most of these have PC and Mac versions on the same disc. I'm trying to figure out a way to preserve the entire CD structure to an ISO, but my earlier attempts over the years on various retail games have been... less than successful.

Does anyone know how to back up and preserve the data on these discs in a way that lets me burn them to other discs, or use them through emulation? With free software, if possible.

Thank you.

 

Toast on the Mac supported doing this pretty easily back in the day. I haven't tried Toast on any modern OS release though.

 

Well I'm on Windows 7 so Toast is out of the question.

 

If you're referring to discs without copy-protection, I suppose that using any decent software like IMGBURN to rip the disc to BIN+CUE would probably do.

 

Best way is to use Mac OS to dump the discs.
Using the built-in Disk Utility, you can do a complete dump.
I have no solutions for PC, all CD mastering I ever saw was made on Macs...

 

That doesn't work. Bin+Cue only dumps the ISO 9660 data, and I'm left without any Mac stuff.

Dammit. I don't have access to a Mac OS computer, and I can't get CDs to work in Mac OS emulators anymore. There's gotta be a way...

 

How are you verifying the presence/lack of HFS without a Mac? Maybe the tool you're using just doesn't handle/show the HFS portion?

Anyways, (while I doubt Imgburn is to blame here,) CloneCD might be worth a try. It definitely doesn't care about any file systems on the disc. MagicIso is another one to try.

 

I started messing around with IsoBuster (I used this years ago to try to get some data off bad CD-Rs) and it can read the data correctly... except for the last sector. It looks like it's intentionally busted so people couldn't create 1:1 CD copies back in the day.
Luckily, the previous sectors don't have any data, just a bunch of 00s. So these are all as close to 1:1 as possible (for me, anyway.)

I verified that these contain the Mac stuff with the same program by loading the image file. I can't extract files off the file system directly, but at least I can look at 'em.

Thanks for the help.

 

If you want to send me an image I can confirm that the HFS partition mounts on a real Mac, at least.

 

Otherwise, have you tried Linux?

 

Isobuster should do a fine job of making an image of a hybrid disc.