Pixelated picture after Remux using Rempg

[nickyct]

I remuxed using Rempg2 on "Murder by numbers" and "A walk to remember" Once burnt the pciture were pixelated on both movies when play back on stand alone desktop.
When I hit the scan button the picture looked perfect.
Anybody know why it does that. I use the same setting on some other movie that I Remux and it came out fine.

thanks