I am trying to get a divx back onto dvd so it will play in old dvd players and ps2's (therefore has to be mpg2)

I am trying to encode it using TMPGEnc but when I try and start the encoding I get a

"The sample rate is not permited with selected MPEG-2 level > sample rate=width*hight*framerate."

error.

Anyone know what I can do?

thanks