SD camcorder only records in MPEG-4 format but DVD player only reads MPEG-2 format, how do I convert 4 to 2 ?
that is, how do I convert the MPEG-4 video to MPEG-2 so I can burn it onto a DVD. or is there another way around this
just need to send DVD’s to family

You need to find or buy conversion software.
http://www.tomdownload.com/multimedia_design/video/convert_mpeg2_mpeg4_converter.htm
I think Nero 7 could do this conversion.