I have been researching for a similar option for my Video Toaster and later when I purchase Flyerboard. One thing to note is the pixels on the Amiga are rectangle as opposed to the traditional square pixel format on the PC. I not sure about the Amiga PAR card any more (I used to own one.) I think This might help in the conversion to modern video such as MPEG2/DVD.
I was recently looking at a Sony D155 DVD recorder that retailed for $180 US dollars. A very nice unit, I believe it includes S-Video input as well as component, composit and a Firewire port.
The main point however is that with the S-video input being an Analog signal which is probably converted to digital on the fly; the recorder probably makes the conversion adjustment anyway. NTSC Analog and NTSC standard digital DVD still have the 720x480 pixel ratio. If I remember right The Amiga-PAR has 720X480 too. I will send the specs of this DVD Recorder in my next posting.
Meanwhile post your question here on the Newtek Amiga Video Toaster forum. They have a lot of good input on these exact kind of issues. I have seen similar discussions on this subject and Amiga owners getting very good results out putting to DVD. Even scaling up to HDTV screens. Many Toaster users have used PAR cards with there Toasters over the years too:
http://www.newtek.com/forums/forumdisplay.php?f=47 :-) :-) :-) :idea: :idea:
Amiga owner since 1992
A2000 with Derringer Platinum 030-50 mhz/68882 math coprocessor 50mhz, 18 megs ram
Data Flyer SCCI/IDE combo controller 400 meg SCSI HD
Video Toaster 4000