as file stacking with xbmp sucks i haved tryed merging the vob files .i have dvd decripter and made my film in four vob files i got a another program that MERGES the vob files this works .but to merge all the files it means i need twice the hd space on my pc which i really dont have no matter what i delete . is there a way of taking the files from the dvd and merging them strait away with out doubling the files .