Thank you all very much for the comments.
I now appreciate the DVD menu problem with HD output in Liquid.
I will continue to use Liquid, as I think it is an amazing piece of
kit. I will use it to edit as LewS suggests but with other Authoring
software.
The Fuse/render option has worked for me and I am happy with the results for normal DVD'S
In order to make bluray and HDdvd's I have been using a programe called Virtual CD 10. I would have to recommend it to any one.
This allows me to create any disc in any format without actually having to buy a disc or drive to play them in.
Everything exists on the computer, the software creates a virtual player that the computer sees as a real drive,
Virtual CD can create any type of disc on the computer HDD, + - bluray, hddvd, cd, dvd, whatever. Then I use Nero to burn the content
onto the virtual disc.
The computer is connected to the tv with a standard HDMI cable and plays the content of the disc using the viewer of your choice, I use Power DVD 10 which
plays full 1080p hd with surround sound ect. The down side is you must have the computer to view your movies, but with having a computer
dedicated and permanently connected to the TV. this is not a problem for me. So full HD bluray without ever buying a bluray disc.
Regards
Colin.