Losing the logo and rendering

[nic6]

Greetings,
I am importing vob files from DVDs into Vegas and cutting of the top of the video using the 'event pan and crop' tool to lose the logo which works well.
My question is have I got the rendering options set correctly for the highest quality output.
The source is interlaced top field first.
I'm burning to DVD so is Mpeg 2, the audio I want is AC3 however this option I can not see?
Please see screen shot below.

http://my.jetscreenshot.com/8419/201...hoqo-182kb.jpg

[Bpotter908]

Click the button that says "custom" and look for your audio setting inside there!

[Midnight Blue]

I think you will have to do two seperat renders to get AC3 audio. One for the mpeg2 video where you will have to untick the include audio box on the audio tab of the custom settings box and a seperate audio render as AC3.