[Ben Green]

I know this is an old thread but i have discovered how to get round this whole ‘bit rate too low’ business.

Under the ‘optimise’ click on Video1, then for each ‘menu’ option click on the ‘use default bitrate’ option and change it to ‘no’. You can then change the bit rate to what ever you want. I beefed mine right up to full, depends on how much you can fit on the DVD.

You will need to work your way down all the menu and video data/options on the left changing the default bit rate option.

Once you have done this you should be good to go.
I was tearing my hair out trying to figure this out and now its all sweet.

Hope this helps