Moving recordings from one Linux Machine to another

I have a new machine machine configured using Trixbox on Linux. I would like to move my recordings from the original one to the new one. It seems like it should be a simple task, but not being a Linux wizard am finding it to be complicated.

I would like to use the DVD drive to copy files (as well as to backup other files). I undersand that you format the disk, mount the disk and then you can copy the files. I can’t find any information about formating a Read Only or R/W DVD.

I am sue the process of copying to a CD or DVD is simple, but I can’ figure it out.

Does anyone know of an easy way to do it?