and jumping to the end, here's an example:
Capture video to camcorder: 1 hour service = 1 hour capture.
Transfer video from camcorder to computer in a format the editor can deal with: unknown since we don't know which camcorder or computer or video editor. We also don't know what, if any, editing will happen. A logo, titles, subtitles, transitions and cutting dead time or other non-useful segments may be useful.
Render edited video to a high quality video format: time unknown since we don't know which computer or which editor.
Import rendered video to a DVD authoring application; add scene selection (at least 2 - 1 for each service). Burn the master. Time unknown since we don't know which computer or DVD authoring application.
Note: A single sided, regular blank DVD can hold up to 120 minutes of VOB format standard definition video. Your claim that you both will put the 1 hour service on the DVD. In order for this to work, the video must be reduced to about 55 minutes per service. The 10 minutes is made available space on the DVD so the DVD authoring application can add the scene selection and perhaps audio background or a photo or two.
An alternative is to connect the camcorder's AV-out to the DVD burner. Press play on the camcorder, the DVD recorder records real time. That means 2 hours pushing the video onto the video recorder.
We assume the resulting disc needs to be playable in a regular DVD player.
A single layer blank DVD holds only 4.7 gig of data. A double layer regular blank DVD holds up to 8.5 gig. In either case, there is no way to fit more than a few minutes of high definition video on the disc - and since regular DVD players cannot do anything with that, it is good you don't need HD video. (For reference: Blue Ray blank disc come in 25 and 50 gig sizes.)