bak2disc is a disc-based backup script aimed at
being easy to use and powerful. Its most notable
feature is the way it groups common files and
directories together to preserve structure when
data is divided into discs. This functionality is a tunable threshold that lets you control the balance between data contiguity and maximum disc usage. In addition, bak2disc also features resume support, which allows you to stop burning between discs and continue later. Burning is done on-the-fly, using growisofs for DVDs and cdrecord for CDs.
