Lenses of that era have trouble with CD-Rs, and the age of it at this point doesn't help either.
More importantly, CR-R
Ws have different optical properties and old drives generally can't read them at all. No such problems with CD-Rs that I'm aware of.
Note the CD³² needs a trademark file written to the disc. I don't think this is relevant if you're writing an ISO (as it should form part of the image), but if you're trying to create your own bootable CDs then you need to add it (it's on the DevCD 2.1, and MakeCD has the options for adding the file correctly)
