Convert Camtasias for DVD format

This is an easy job for someone who knows what they are doing... unlike me! :) I have created 5 camtasias that relate to Outlook. People are having a lot of trouble viewing them and I need the files made into a dvd format so that I can burn them onto DVDs and then people can watch them via their computer or their DVD player. I need to receive them in a format and size that is easily downloadable from my website. I need them to be clear so people can see and hear my voice. I need for them to be downloadable and playable to any computer. ie compatible. I believe all of them can be burned onto 1 disc if in this DVD format.