Thanks for your response Rounik.
It shows up in the final dvd on the computer
and on tv monitor via set top dvd player.
It's a wedding ceremony video and it shows up
at a couple of points on the bride's face for
several seconds. No real movement of the subject.
Exported to Compressor once at one pass and also a two pass export. Pixelation shows on both.
Other settings: SD DVD stream output,Mpeg 2 file format, 16:9 aspect,progressive field dominance. Maximum bit rate: 7.5
Frame controls:On, Output fields: Progressive