I'd say your best course to do this is to encode and author it using a standalone Digital Video Recorder, like one of them offered by Pioneer, Panasonic, and Philips. I would guess this would be about 1.5 times your video length to finish, but that would give you just one disk. Then you'd have to duplicate it, and I don't know if these DVR's can store this information internally and burn multiple copies. Either way, it would typically take hours. If you could store the disk image, each disk would take at least 30 minutes to burn.