Nero Recode bitrate & profiles

[chucktx]

Can anyone explain to me why the bitrate goes down as I choose a "higher" profile in Nero Recode. Example... Duration 01:55.17; Fit to 80min CD
"HDTV-AVC" - 733.0kbps, "Standard-AVC" - 765.0kbps.

[xDrJx]

cause the default audio setting will change as you change the profile

[bond]

of course when doing a 2pass encode the final bitrate on the outcome encode should always be the same (the one you set it should encode to) no matter what codec setting nor profile set