I was looking around for a boot CD that would allow me to edit TrueCrypt volumes the other week and came across one that included a tiny 81 KB utility called BurnCDCC.
It does one thing and one thing only: burns an ISO image to an optical disc. It’s one file, that’s it, and at that size perfect for getting the job done. Did I mention it’s free? Thank you Terabyte Unlimited for creating BurnCDCC; go to their Freeware page and grab a copy.