Years ago, I was getting one coaster after another, using the software that came with my 2x (external) CD read/write drive.
I consulted with a professional CD duplicator and his reply was just one word, "Nero". I bought that first copy of NERO from Ahead Software and I've been an avid supporter of Nero burning rom software, ever since.
Google for "Nero Micro" and just see what's available.
I'm running it and I just love it.
Recently I found a very simple little CD burning program called "ImgBurn" that is 100% FREE. NO trials, no demos, and NO COST, ever.
It's the easiest program I've ever seen for burning an .ISO to a CD.
So simple a 'cave man' could do it.
And, did I mention, it's absolutely FREE.
Google it, download it, install it and run it.
Here is the opening menu from 'ImgBurn'.
As for making boot CD's from a boot Floppy, I find nothing any simpler than Nero itself. It can take the contents of a bootable floppy or flash drive and burn it to a CD in just one operation.
Life at the computer gets so much simpler and more fun, when you have the proper software.
Cheers Mates!
Shadow