I use a network between my computers and a CD Writer drive to back up. I can place 670 MB on a CD. The CD can be formatted to look like another hard drive and the files are just copied to the CD or the zipped backup is stored on the CD. I use rewritable CD's for this purpose and can write over them if I need to. If you are going to use the CD to transfer to the laptop, you close it out and the laptop can read your data directly from the CD.