Ideally, Crossover Office should be part of your automatic daily backup plan. If it is too big, however, you may have to omit it from your automatic backups and perform occasional manual backups. …
These instructions assume you are using K3B as your burning application. Brasero does not offer a needed option (see below).
Drag and drop ~/cxoffice and ~/.cxoffice into the current projects window. Being a hidden directory, the latter will not appear in the upper right hand window by default; right click on the window and select View – Show Hidden Files.
As you drop the directories you will be asked "Do you also want to add hidden files?"; answer "Add". You will be asked about symbolic links and given the options to follow or add links; answer "Always add links". You will be asked "Do you also want to add system files?"; answer "Add".
(These are the options that Brasero does not offer; in their absence Brasero wants to burn over 20 GB of data.)
Give the disk a descriptive title such as "cxoffice backup [date]".
Press "Burn". In the dialog window, select the "Filesystem" tab and insure that the filesystem selected is "Linux/Unix only". Press "Burn".