Here take as at first file, Propierties are same.
1. You can your videos to PAL and NTSC convert, it's only your wish, BUT if was taped direct in PAL (720x576, 704x576) or in NTSC (720x480, 704x408) you must it keep. Now you have 480x360 and 1280x720, from these files you can do a both PAL and NTSC.
2. Look on your "Scan Type" and "Aspect ratio" out file Properties, keep it everytime same. But sometimes files taped with different cameras and you need compile full show, then you of source must keep only one settings for your video, here must a lot works, it's not so difficult just need many time. I think while it's not necessary for you...
3. Take maximal bitrate for good picture quality (8000 or 8500 Kbps)
4. For Audio take AC3 - it's enough format for DVD. But if you want PCM audio to have, then you must a bit little video bitrait to have. DVD has maximal 9800 Kbps, but you can use 9300-9400, otherwise video will be often freeze. PCM has 1536 Kbps. 8000+1536=9536, it's a bit more. Then take 7000-7500 Kbps for video. For audio, if you have 64 Kbps, then 128-192is enough, don't need 384 or 448)))). If you have original 192, 256 or 384, then just keep so.
I forget you show, if you convert in 16:9 Aspect ratio, you must to put a tick here (screen), otherwise you get black strips along the edges of a picture. If you convert in 4:3 you don't this thing use.
Be not afraid to experiment and try, otherwise never itself you will learn and understand programm and how work with audio/video material. It needs time but if something is not clear, you can always ask me.
I hope to you have helped!
