Norton bootable recovery tools

I am new to Norton 360.  I see the norton bootable recovery tools but I am not sure how to use them.  I do not have any PC problems now but want to create DVD disks that I can use should I have a problem.  I saved the programs to 2 DVD's using the download buttons, but they appear to be small files.  Do I have everything I need on these disks?  I am afraid to run the programs now because I do not want to cause a problem when I do not have one now.

 

Thanks.

 

Mike