Thanks guys. So it seems to be much more complicated than just knockin off a couple of CD's for the car than. I didn't realise that. I obviously need to brush up on my technology a bit. I thought something was going wrong when my DVD burner said the blank had 4.7 GB and my new LOTR DVD was 7 point something. i'll have to go and have a word with the chap in my local independant computer shop, see what he can do for me regarding the required software and 'how to' knowledge, he's done me a few good 'favours' in the past, at a price mind.
I should also add that I've only got about 6 DVD's anyway, and my query was more out of interest and the desire to play with my new toys for my own family use, rather than pirating films on a large scale.
Thanks again
S&C
Edited to add:
I downloaded DVD shrink and shrunk a DVD but didn't manage to copy it as my burning software wasn't up to it, I think that something like Nero would do it but i couldn't be bothered to buy a copy.
I downloaded and used the '1 Click DVD' software and it worked first time, brilliantly. I can't discern any noticable difference between my copy and the original, apart from all of the titles, extras , etc,( missing

), Basically you just get the movie and it cuts all the crap. . I don't know whether i'll bother buying the full version as i won't have much need for copying, as i said i just wanted to see what my new toys could do. If i do i know what to buy though.
Thanks again