You need to output the current edit sequence and encode it to MPEG-2 to put onto a settop playable DVD.
THe encode times can be very long - depending on the content. Miles of footage sounds like it will take hundreds of hours to encode?
Are you talking about replacing the tapes accessability with DVD content accessability? Then you would want to archive the files on a data DVD.
DVD dailies are usually done in iDVD for quick turnaround to the producer/director for viewing the next morning.
Unless you get those miles of footage off the tapes, how can you use them?