Firstly to veiw your movies you need to install the corrct codecs for your player...Or you can get VLC it has all the codecs already installed to play your files...
This thread has a list of what you need....
http://www.gnutellaforums.com/showth...threadid=40665
I dont use Nero so I cant advise you on using it, I do however use Dvdsanta, it converts all files to dvd format and then burns them for you...
This is the link to the site if you want to check it out
http://www.dvdsanta.com
BTW I found some info on .mov files supplied by LOTR....
Beware of .mov files if they are less than 100 MB as they are probably porn spam.