I have an OS 8.6b9 CD which won't mount, but I'm pretty sure still has recoverable data on it. I made an image of it using DiskDup Pro this morning. I started at 2:40 AM and it finally finished around 8 AM. I have a feeling the image isn't as good as the CD, due to how long it took.

Anyway, my question: is there any utility that can recover data from a CD without mounting it via the Finder? The Finder always says the disk is undreadable.