I see why by your screenshots... you have the backup folder with other lang > not needed remove it. Also you have a data.pl-PL.orc in your gamefolder, that is your language file which isnt included in the conversion for english. ( AND happens to take up same amount of extra space as the update would ) thats may be why your oversized in final archive as it was originally for english only. I'll work on a script that'll allow all languages + updates but it will NOT be 1xdvd5, as the updates add an additional 600+ MB to the game and cannot compress down far enough to get it to fit on 1dvd5 or just use this one already done.
http://fileforums.com/showthread.php?t=92025