Assuming that this is DV footage, you have about 3.6 hours of footage, so better to divide it into 2 discs.
Just create a project with all the clips for one disc in sequence. You can create chapter stops (if you are using DVDA to author)by placing markers at the start of each separate clip (Excalibur can do this automatically). Then render the project to Mpeg2/AC3.
Gary Kleiner
Learn Vegas and DVD Architect
http://www.VegasTrainingAndTools.com