Thanks guys for the info. I decided to uninstall both DLA and RecordNow from the computer and presto! All works fine, for now at least. The CD I burnt works fine on other computers including Macs.

I'm trying to figure out what's so useful about DLA, but the usefulness does not seem very apparent to me - if I need to transfer files easily like a floppy drive I'd just use my USB flash drive but I guess it might be a boon to others.