InfraRecorder. Small download and freeware. It can make ISOs of Mac format CDs and DVDs and it'll burn them correctly so they'll work in a real Mac.

http://infrarecorder.org

Thank you,
I´ ll try that one later. ImgBurn is free too, and does a pretty good job either.

Did you manage to create an image of a multi volume disk, where one volume is HFS and the other an audio CD?
I can copy that disk, but SS wont mount it so far.

I just made ISOs from the 4 disc 10.4 set. They all worked.

I don't know what's weird with disc 4, OS 9.0.4 on Sheep Shaver won't recognize it, but my real iMac running 10.4.11 does and the ISO of it worked to install on PearPC.

If this works, it may solve a problem that I've been having with a disk lately. I'll give it a try when my bandwidth resets!

I could not make it work with XP SP3. I downloaded the portable .zip version and inflated it to my NTFS, C: volume.
I tried to create an image of my MacOS8 disk for a try. My mac CD' s are said to be unreadable with SATA and PATA optical drives.
Do you have an idea, what I am missing?

Try the non-portable version. I used it to make ISO images from OS X 10.4 CD-ROMs with XP SP3 and a SATA DVD burner. Then I used those ISO's to install 10.4 on PearPC.

OK, the Windows installer did the job.
I created an image of a Macintosh disk all right.

However, I could not manage to create an image of a multi volume disk.
The HFS part is read OK, the audio part gives me an "unreadable disk" error.

Never mind, its only an old hypercard thing with K.465 "String Quartet in C Major" on it.