the scaffolding for such functionality is present throughout the system, it's just not implemented at all.. but the system has a concept of blank media, and thus could be used to trigger a series of screens from Manage Drives to burn discs...
This is especially poignant in that not only could single drives do this, but jukeboxes that have workable DVD+R/W+RAM drives, such as the Sony VGP-XL1B3 could then be used as burnable devices.
-Thom